Innocent III
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Pope Innocent III (; born Lotario dei Conti di Segni; 22 February 1161 – 16 July 1216) was head of the
Catholic Church The Catholic Church (), also known as the Roman Catholic Church, is the List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...
and ruler of the
Papal States The Papal States ( ; ; ), officially the State of the Church, were a conglomeration of territories on the Italian peninsula under the direct sovereign rule of the pope from 756 to 1870. They were among the major states of Italy from the 8th c ...
from 8 January 1198 until his death on 16 July 1216. Pope Innocent was one of the most powerful and influential of the medieval popes. He exerted a wide influence over the Christian states of Europe, claiming supremacy over all of Europe's kings. He was central in supporting the
Catholic Church The Catholic Church (), also known as the Roman Catholic Church, is the List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...
's reforms of ecclesiastical affairs through his
decretal Decretals () are letters of a pope that formulate decisions in canon law (Catholic Church), ecclesiastical law of the Catholic Church.McGurk. ''Dictionary of Medieval Terms''. p. 10 They are generally given in answer to consultations but are some ...
s and the
Fourth Lateran Council The Fourth Council of the Lateran or Lateran IV was convoked by Pope Innocent III in April 1213 and opened at the Lateran Palace in Rome on 11 November 1215. Due to the great length of time between the council's convocation and its meeting, m ...
. This resulted in a considerable refinement of Western
canon law Canon law (from , , a 'straight measuring rod, ruler') is a set of ordinances and regulations made by ecclesiastical jurisdiction, ecclesiastical authority (church leadership) for the government of a Christian organization or church and its membe ...
. He is furthermore notable for using
interdict In Catholic canon law, an interdict () is an ecclesiastical censure, or ban that prohibits certain persons or groups from participating in particular rites, or that the rites and services of the church are prohibited in certain territories for ...
and other censures to compel princes to obey his decisions, although these measures were not uniformly successful. Innocent greatly extended the scope of the
Crusades The Crusades were a series of religious wars initiated, supported, and at times directed by the Papacy during the Middle Ages. The most prominent of these were the campaigns to the Holy Land aimed at reclaiming Jerusalem and its surrounding t ...
, directing crusades against Muslim Iberia and the
Holy Land The term "Holy Land" is used to collectively denote areas of the Southern Levant that hold great significance in the Abrahamic religions, primarily because of their association with people and events featured in the Bible. It is traditionall ...
as well as the
Albigensian Crusade The Albigensian Crusade (), also known as the Cathar Crusade (1209–1229), was a military and ideological campaign initiated by Pope Innocent III to eliminate Catharism in Languedoc, what is now southern France. The Crusade was prosecuted pri ...
against the
Cathar Catharism ( ; from the , "the pure ones") was a Christian quasi- dualist and pseudo-Gnostic movement which thrived in Southern Europe, particularly in northern Italy and southern France, between the 12th and 14th centuries. Denounced as a he ...
s in southern France. He organized the
Fourth Crusade The Fourth Crusade (1202–1204) was a Latin Christian armed expedition called by Pope Innocent III. The stated intent of the expedition was to recapture the Muslim-controlled city of Jerusalem, by first defeating the powerful Egyptian Ayyubid S ...
of 1202–1204, which ended in the
sack of Constantinople The sack of Constantinople occurred in April 1204 and marked the culmination of the Fourth Crusade. Crusaders sacked and destroyed most of Constantinople, the capital of the Byzantine Empire. After the capture of the city, the Latin Empire ( ...
. Although the attack on Constantinople went against his explicit orders, and the Crusaders were subsequently excommunicated, Innocent reluctantly accepted this result, seeing it as the
will of God The will of God or divine will is a concept found in the Hebrew Bible, the New Testament, and a number of other texts and worldviews, according to which God's Will (philosophy), will is the cause of everything that exists. Thomas Aquinas Accord ...
to reunite the
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and
Eastern Orthodox Church The Eastern Orthodox Church, officially the Orthodox Catholic Church, and also called the Greek Orthodox Church or simply the Orthodox Church, is List of Christian denominations by number of members, one of the three major doctrinal and ...
es. In the event, the sack of Constantinople and the subsequent period of ''
Frankokratia The Frankish Occupation (; anglicized as ), also known as the Latin Occupation () and, for the Venetian domains, Venetian Occupation (), was the period in Greek history after the Fourth Crusade (1204), when a number of primarily French ...
'' heightened the hostility between the Latin and Greek churches; the Byzantine Empire was restored in 1261, albeit in a much weaker state.


Biography


Early life

Lotario de' Conti was born in
Gavignano Gavignano is a town in the Metropolitan City of Rome Capital, Metropolitan City of Rome, Lazio, central Italy. Gavignano is approximately 50 km south east of Rome, on a hill in the Lepini Mountains. The name of the town is believed to be d ...
, near
Anagni Anagni () is an ancient town and ''comune'' in the province of Frosinone, Lazio, in the hills east-southeast of Rome. It is a historical and artistic centre of the Latin Valley. Geography Overview Anagni still maintains the appearance of a s ...
, southeast of
Rome Rome (Italian language, Italian and , ) is the capital city and most populated (municipality) of Italy. It is also the administrative centre of the Lazio Regions of Italy, region and of the Metropolitan City of Rome. A special named with 2, ...
. His father, Trasimondo de' Conti di Segni (''de comitibus Signiae'', Count belonging to the notables of the city of
Segni Segni (, ) is an Italian town and ''comune'' located in Lazio. The city is situated on a hilltop in the Lepini Mountains and overlooks the valley of the Sacco River. History Early history According to ancient Roman sources, Lucius Tarquinius ...
, was of the Counts of Segni, whose familiy eventually produced nine cardinals and four popes, including
Gregory IX Pope Gregory IX (; born Ugolino di Conti; 1145 – 22 August 1241) was head of the Catholic Church and the ruler of the Papal States from 19 March 1227 until his death in 1241. He is known for issuing the '' Decretales'' and instituting the P ...
, Alexander IV, and Innocent XIII. His mother, Clarissa Scotti (Romani de Scotti), was according to some scholars related to Pope Clement III. Lotario received his early education in
Rome Rome (Italian language, Italian and , ) is the capital city and most populated (municipality) of Italy. It is also the administrative centre of the Lazio Regions of Italy, region and of the Metropolitan City of Rome. A special named with 2, ...
, probably at the Camaldolese Benedictine abbey of Sant'Andrea al Celio under Peter Ismael. He studied theology in
Paris Paris () is the Capital city, capital and List of communes in France with over 20,000 inhabitants, largest city of France. With an estimated population of 2,048,472 residents in January 2025 in an area of more than , Paris is the List of ci ...
under the theologians Peter of Poitiers, Melior of Pisa, and Peter of Corbeil, and (possibly) jurisprudence in
Bologna Bologna ( , , ; ; ) is the capital and largest city of the Emilia-Romagna region in northern Italy. It is the List of cities in Italy, seventh most populous city in Italy, with about 400,000 inhabitants and 150 different nationalities. Its M ...
, according to the ''Gesta'' (between 1187 and 1189). As pope, Lotario was to play a major role in the shaping of canon law through conciliar canons and decretal letters. Shortly after the death of Alexander III (30 August 1181), Lotario returned to Rome and held various ecclesiastical offices during the short reigns of Lucius III, Urban III, Gregory VIII, and Clement III, being ordained a
Subdeacon Subdeacon is a minor orders, minor order of ministry for men or women in various branches of Christianity. The subdeacon has a specific liturgical role and is placed below the deacon and above the acolyte in the order of precedence. Subdeacons in ...
by Gregory VIII and reaching the rank of
Cardinal-Priest A cardinal is a senior member of the clergy of the Catholic Church. As titular members of the clergy of the Diocese of Rome, they serve as advisors to the pope, who is the bishop of Rome and the visible head of the worldwide Catholic Church. ...
under Clement III in 1191. As a cardinal, Lotario wrote '' De Miseria Condicionis Humane'' "On the Misery of the Human Condition". The work was very popular for centuries, surviving in more than 700
manuscript A manuscript (abbreviated MS for singular and MSS for plural) was, traditionally, any document written by hand or typewritten, as opposed to mechanically printed or reproduced in some indirect or automated way. More recently, the term has ...
s. Although he never returned to the complementary work he intended to write, ''On the Dignity of Human Nature'', Bartolomeo Facio (1400–1457) took up the task writing ''De excellentia ac praestantia hominis''.


Election to the papacy

Celestine III died on 8 January 1198. Before his death he had urged the
College of Cardinals The College of Cardinals (), also called the Sacred College of Cardinals, is the body of all cardinals of the Catholic Church. there are cardinals, of whom are eligible to vote in a conclave to elect a new pope. Appointed by the pope, ...
to elect Giovanni di San Paolo as his successor, but Lotario de' Conti was elected pope in the ruins of the ancient Septizodium, near the
Circus Maximus The Circus Maximus (Latin for "largest circus"; Italian language, Italian: ''Circo Massimo'') is an ancient Roman chariot racing, chariot-racing stadium and mass entertainment venue in Rome, Italy. In the valley between the Aventine Hill, Avent ...
in Rome after only two ballots on the very day on which Celestine III died. He was only thirty-seven years old at the time. He took the name Innocent III, maybe as a reference to his predecessor Innocent II (1130–1143), who had succeeded in asserting the papacy's authority over the emperor (in contrast with Celestine III's recent policy).


Reassertion of papal power

As pope, Innocent III began with a very wide sense of his responsibility and his authority. During Innocent III's reign, the papacy was at the height of its powers. He was considered the most powerful person in Europe at the time. In 1198, Innocent wrote to the prefect Acerbius and the nobles of Tuscany expressing his support of the medieval political Sun and Moon allegory. His papacy asserted the absolute spiritual authority of his office, while still respecting the temporal authority of kings.Muldoon, James
''Empire and Order''
Springer, 1999, p. 81,
There was scarcely a country in Europe over which Innocent III did not in some way or other assert the supremacy which he claimed for the papacy. He
excommunicated Excommunication is an institutional act of religious censure used to deprive, suspend, or limit membership in a religious community or to restrict certain rights within it, in particular those of being in communion with other members of the con ...
Alfonso IX of León Alfonso IX (15 August 117123 or 24 September 1230) was King of León from the death of his father Ferdinand II in 1188 until his own death. He took steps towards modernizing and democratizing his dominion and founded the University of Salaman ...
for marrying a near relative,
Berengaria of Castile Berengaria (Castilian language, Castilian: ''Berenguela''), nicknamed the Great (Castilian: la Grande) (1179 or 1180 – 8 November 1246), was Queen of CastileThe full title was ''Regina Castelle et Toleti'' (Queen of Castile and Toledo). for ...
, a daughter of
Alfonso VIII Alfonso VIII (11 November 11555 October 1214), called the Noble (El Noble) or the one of Las Navas (el de las Navas), was King of Castile from 1158 to his death and King of Toledo. After having suffered a great defeat with his own army at Alarc ...
, contrary to the laws of the Church, and effected their separation in 1204. in 1208, for similar reasons, he annulled the marriage of the crown-prince,
Afonso II of Portugal Afonso II (; 23 April 118525 March 1223), also called Afonso the Fat () and Afonso the Leper (), was List of Portuguese monarchs, King of Portugal from 1211 until 1223. Afonso was the third monarch of Portugal. Afonso was the second but eldest ...
, with Urraca, daughter of Alfonso of Castile. He received Aragon in vassalage from Pedro II and crowned him king at Rome in 1204. The Muslim recapture of
Jerusalem Jerusalem is a city in the Southern Levant, on a plateau in the Judaean Mountains between the Mediterranean Sea, Mediterranean and the Dead Sea. It is one of the List of oldest continuously inhabited cities, oldest cities in the world, and ...
in 1187 was to him a divine judgment on the moral lapses of Christian princes. He was also determined to protect what he called "the liberty of the Church" from inroads by
secular Secularity, also the secular or secularness (from Latin , or or ), is the state of being unrelated or neutral in regards to religion. The origins of secularity can be traced to the Bible itself. The concept was fleshed out through Christian hi ...
princes. This determination meant, among other things, that princes should not be involved in the selection of
bishop A bishop is an ordained member of the clergy who is entrusted with a position of Episcopal polity, authority and oversight in a religious institution. In Christianity, bishops are normally responsible for the governance and administration of di ...
s. It was particularly focused on the
Patrimony of Saint Peter The Patrimony of Saint Peter () originally designated the landed possessions and revenues of various kinds that belonged to the apostolic Holy See. Until the middle of the 8th century this consisted wholly of private property; later, it correspon ...
, the section of central Italy claimed by the popes and later called the
Papal States The Papal States ( ; ; ), officially the State of the Church, were a conglomeration of territories on the Italian peninsula under the direct sovereign rule of the pope from 756 to 1870. They were among the major states of Italy from the 8th c ...
. The patrimonium was routinely threatened by the
Holy Roman Empire The Holy Roman Empire, also known as the Holy Roman Empire of the German Nation after 1512, was a polity in Central and Western Europe, usually headed by the Holy Roman Emperor. It developed in the Early Middle Ages, and lasted for a millennium ...
of the
House of Hohenstaufen The Hohenstaufen dynasty (, , ), also known as the Staufer, was a noble family of unclear origin that rose to rule the Duchy of Swabia from 1079, and to royal rule in the Holy Roman Empire during the Middle Ages from 1138 until 1254. The dynasty ...
, which claimed it. Emperor Henry VI expected his infant son Frederick to bring Germany, Italy, and Sicily under a single ruler, which would leave the Papal States exceedingly vulnerable. Henry's early death left his three-year-old son Frederick as king of Sicily. Henry VI's widow, Constance of Sicily, ruled over Sicily for her young son before he reached the age of majority. She was as eager to remove German power from Sicily's kingdom as Innocent III and named Innocent as the young Frederick's guardian until he reached maturity before she died in 1198, In exchange, Innocent was also able to recover papal rights in Sicily that had been surrendered decades earlier to King
William I of Sicily William I (1120 or 1121 7 May 1166), called the Bad or the Wicked (), was the second king of Sicily, ruling from his father's death in 1154 to his own in 1166. He was the fourth son of Roger II and Elvira of Castile. William's title "the Bad" ...
by
Pope Adrian IV Pope Adrian (or Hadrian) IV (; born Nicholas Breakspear (or Brekespear); 1 September 1159) was head of the Catholic Church and ruler of the Papal States from 4 December 1154 until his death in 1159. Born in England, Adrian IV was the first Pope ...
. The Pope invested the young Frederick II as King of Sicily in November 1198. He also later induced Frederick II to marry Constance of Aragon, the widow of King Emeric of Hungary, in 1209.


Involvement in Imperial elections

Innocent was concerned that the marriage of Henry VI and Constance of Sicily gave the Hohenstaufens a claim to all the Italian peninsula except for the Patrimony, which would be surrounded by Imperial territory. After the death of Emperor Henry VI, who had recently also conquered the
Kingdom of Sicily The Kingdom of Sicily (; ; ) was a state that existed in Sicily and the southern Italian peninsula, Italian Peninsula as well as, for a time, in Kingdom of Africa, Northern Africa, from its founding by Roger II of Sicily in 1130 until 1816. It was ...
, the succession became disputed: as Henry's son Frederick was still a small child, the partisans of the Staufen dynasty elected Henry's brother, Philip, Duke of Swabia, king in March 1198, whereas the princes opposed to the Staufen dynasty elected Otto, Duke of Brunswick, of the
House of Welf The House of Welf (also Guelf or Guelph) is a European dynasty that has included many German and British monarchs from the 11th to 20th century and Emperor Ivan VI of Russia in the 18th century. The originally Franconian family from the Meuse-Mo ...
. King
Philip II of France Philip II (21 August 1165 – 14 July 1223), also known as Philip Augustus (), was King of France from 1180 to 1223. His predecessors had been known as kings of the Franks (Latin: ''rex Francorum''), but from 1190 onward, Philip became the firs ...
supported Philip's claim, whereas King Richard I of England supported his nephew Otto.Comyn, p. 275 In 1201, the pope openly espoused the side of Otto IV, whose family had always been opposed to the house of Hohenstaufen.Bryce, p. 206 The confusion in the Empire allowed Innocent to drive out the imperial feudal lords installed by Emperor Henry VI from
Ancona Ancona (, also ; ) is a city and a seaport in the Marche region of central Italy, with a population of around 101,997 . Ancona is the capital of the province of Ancona, homonymous province and of the region. The city is located northeast of Ro ...
,
Spoleto Spoleto (, also , , ; ) is an ancient city in the Italian province of Perugia in east-central Umbria on a foothill of the Apennines. It is south of Trevi, north of Terni, southeast of Perugia; southeast of Florence; and north of Rome. H ...
and
Perugia Perugia ( , ; ; ) is the capital city of Umbria in central Italy, crossed by the River Tiber. The city is located about north of Rome and southeast of Florence. It covers a high hilltop and part of the valleys around the area. It has 162,467 ...
.Comyn, p. 277 On 3 July 1201, the
papal legate 300px, A woodcut showing Henry II of England greeting the Pope's legate. A papal legate or apostolic legate (from the ancient Roman title '' legatus'') is a personal representative of the Pope to foreign nations, to some other part of the Catho ...
, Cardinal-Bishop Guido of
Palestrina Palestrina (ancient ''Praeneste''; , ''Prainestos'') is a modern Italian city and ''comune'' (municipality) with a population of about 22,000, in Lazio, about east of Rome. It is connected to the latter by the Via Prenestina. It is built upon ...
, announced in Köln Cathedral that Otto IV had been approved by the pope as Roman king and threatened with
excommunication Excommunication is an institutional act of religious censure used to deprive, suspend, or limit membership in a religious community or to restrict certain rights within it, in particular those of being in Koinonia, communion with other members o ...
all those who refused to acknowledge him. At the same time, Innocent encouraged the cities in
Tuscany Tuscany ( ; ) is a Regions of Italy, region in central Italy with an area of about and a population of 3,660,834 inhabitants as of 2025. The capital city is Florence. Tuscany is known for its landscapes, history, artistic legacy, and its in ...
to form a league called the League of San Genesio against German imperial interests in Italy, and they placed themselves under Innocent's protection. In May 1202, Innocent issued the decree ''Per Venerabilem'', addressed to William VIII of Montpellier, explaining his thinking on the relation between the papacy and the Empire. This decree was afterwards embodied in the '' Corpus Juris Canonici'' and contained the following items: * The German princes have the right to elect the king, who is afterwards to become emperor. This right was given by the
Apostolic See An apostolic see is an episcopal see whose foundation is attributed to one or more of the apostles of Jesus or to one of their close associates. In Catholicism, the phrase "The Apostolic See" when capitalized refers specifically to the See of ...
when it transferred the imperial dignity from the Greeks to the Germans in the person of
Charlemagne Charlemagne ( ; 2 April 748 – 28 January 814) was List of Frankish kings, King of the Franks from 768, List of kings of the Lombards, King of the Lombards from 774, and Holy Roman Emperor, Emperor of what is now known as the Carolingian ...
. * The right to investigate and decide whether a king thus elected is worthy of the imperial dignity belongs to the pope, whose office it is to anoint, consecrate, and crown him; otherwise it might happen that the pope would be obliged to
anoint Anointing is the ritual, ritual act of pouring aromatic oil over a person's head or entire body. By extension, the term is also applied to related acts of sprinkling, dousing, or smearing a person or object with any perfumed oil, milk, butter, ...
,
consecrate Sacred describes something that is dedicated or set apart for the service or worship of a deity; is considered worthy of spiritual respect or devotion; or inspires awe or reverence among believers. The property is often ascribed to objects ( ...
, and crown a king who was excommunicated, a
heretic Heresy is any belief or theory that is strongly at variance with established beliefs or customs, particularly the accepted beliefs or religious law of a religious organization. A heretic is a proponent of heresy. Heresy in Christianity, Judai ...
, or a
pagan Paganism (, later 'civilian') is a term first used in the fourth century by early Christians for people in the Roman Empire who practiced polytheism, or ethnic religions other than Christianity, Judaism, and Samaritanism. In the time of the ...
. * If the pope finds that the king the princes have elected is unworthy of the imperial dignity, the princes must elect a new king or, if they refuse, the pope will confer the imperial dignity upon another king because the Church requires a patron and defender. * In case of a double election, the pope must exhort the princes to agree. If, after a due interval, they have not reached an agreement, they must ask the pope to arbitrate. If this fails, the pope must decide in favour of one of the claimants. The pope's decision need not be based on the greater legality of either election but the qualifications of the claimants. Despite papal support, Otto could not oust his rival Philip before the latter was murdered in a private feud. Otto's rule was undisputed, and he reneged on his earlier promises. He set his sights on reestablishing imperial power in Italy, claiming even the Kingdom of Sicily. Given the papal interests in keeping the Holy Roman Empire and Sicily apart, Innocent now supported his ward, King Frederick of Sicily, to resist Otto's advances and restore the Staufen dynasty to the Holy Roman Empire. Frederick was elected by Staufen partisans. The conflict was decided by the
Battle of Bouvines The Battle of Bouvines took place on 27 July 1214 near the town of Bouvines in the County of Flanders. It was the concluding battle of the Anglo-French War (1213–14), Anglo-French War of 1213–1214. Although estimates on the number of troo ...
on 27 July 1214, which pitted Otto and
John, King of England John (24 December 1166 – 19 October 1216) was King of England from 1199 until his death in 1216. He lost the Duchy of Normandy and most of his other French lands to King Philip II of France, resulting in the collapse of the Angevin Empi ...
and the
Angevin Empire The Angevin Empire (; ) was the collection of territories held by the House of Plantagenet during the 12th and 13th centuries, when they ruled over an area covering roughly all of present-day England, half of France, and parts of Ireland and Wal ...
against Philip II of Capetian France. The French defeated Otto, and he lost all influence. He died on 19 May 1218, leaving Frederick II as undisputed emperor. King John was forced to acknowledge the Pope as his feudal lord and accept
Stephen Langton Stephen Langton (c. 1150 – 9 July 1228) was an English Cardinal (Catholic Church), cardinal of the Catholic Church and Archbishop of Canterbury from 1207 until his death in 1228. The dispute between list of English kings, King John of E ...
as
Archbishop of Canterbury The archbishop of Canterbury is the senior bishop and a principal leader of the Church of England, the Primus inter pares, ceremonial head of the worldwide Anglican Communion and the bishop of the diocese of Canterbury. The first archbishop ...
.Powell, James M. ''Innocent III: Vicar of Christ or Lord of the World?'' Washington: Catholic University of American Press, 2nd ed., 1994. In his turn, Frederick II would later become a bitter opponent of the papacy once his empire was secure. The victory of the Capetians in this battle permitted the Invasion of Normandy by Philip II of France and ended the Angevin Empire.


Federal power over Europe

Innocent III played further roles in the politics of Norway, France, Sweden, Bulgaria, Spain and England. At the request of England's King John, Pope Innocent III declared
Magna Carta (Medieval Latin for "Great Charter"), sometimes spelled Magna Charta, is a royal charter of rights agreed to by King John of England at Runnymede, near Windsor, on 15 June 1215. First drafted by the Archbishop of Canterbury, Cardin ...
annulled, which resulted in a rebellion by the English barons who rejected the disenfranchisement.


Crusades and suppression of

heresy Heresy is any belief or theory that is strongly at variance with established beliefs or customs, particularly the accepted beliefs or religious law of a religious organization. A heretic is a proponent of heresy. Heresy in Heresy in Christian ...


Fourth Crusade

Pope Innocent III spent the majority of his tenure as Pope (1198–1216) preparing for a great crusade on the
Holy Land The term "Holy Land" is used to collectively denote areas of the Southern Levant that hold great significance in the Abrahamic religions, primarily because of their association with people and events featured in the Bible. It is traditionall ...
. His first attempt was the
Fourth Crusade The Fourth Crusade (1202–1204) was a Latin Christian armed expedition called by Pope Innocent III. The stated intent of the expedition was to recapture the Muslim-controlled city of Jerusalem, by first defeating the powerful Egyptian Ayyubid S ...
(1202–1204), which he decreed by the papal bull '' Post miserabile'' in 1198. Unlike past popes, Innocent III displayed interest in leading the crusade himself, rather than simply instigating it and allowing secular leaders to organize the expedition according to their aspirations. Innocent III's first order of business in preaching the crusade was to send missionaries to every Catholic state to endorse the campaign. He sent Peter of Capua the Elder to the kings of France and England with specific instructions to convince them to settle their differences, resulting in a truce of five years between the two nations, beginning in 1199. The intent of the truce was not to allow the two kings to lead the crusade, but rather to free their resources to assist the Crusade. For the army's leadership, Innocent aimed his pleas at the knights and nobles of Europe, succeeding in France, where many lords answered the pope's call, including the army's two eventual leaders, Theobald III of Champagne and Boniface I, Marquess of Montferrat. The pope's calls to action were not received with as much enthusiasm in England or Germany, and the expedition became mainly a French affair. The Fourth Crusade was an expensive endeavor. Innocent III raised funds with a new approach: requiring all clergy to donate one-fortieth of their income. This marked the first time a pope ever imposed a direct tax on the clergy. He faced many difficulties collecting this tax, including corrupt tax collectors and disregard in England. He also sent envoys to King John of England and King Philip of France, who pledged to contribute to the campaign, and John also declared his support for the clerical tax in his kingdom. The Crusaders also contributed funds: Innocent declared that those who took the crusader's vow but could no longer fulfill it could be released by a contribution of funds. The pope put Archbishop
Hubert Walter Hubert Walter ( – 13 July 1205) was an influential royal adviser in the late twelfth and early thirteenth centuries in the positions of Chief Justiciar of England, Archbishop of Canterbury, and Lord Chancellor. As chancellor, Walter be ...
in charge of collecting these dues. At the onset of the crusade, the intended destination was Egypt, as the Christians and Muslims were under a truce at the time. An agreement was made between the French Crusaders and the Venetians. The Venetians would supply vessels and supplies for the Crusaders, who would pay 85,000
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. Innocent approved under two conditions: a representative of the pope must accompany the crusade, and the attack on other Christians was strictly forbidden. The French failed to raise sufficient funds for the payment of the Venetians. As a result, the Crusaders diverted the crusade to the Christian
Dalmatia Dalmatia (; ; ) is a historical region located in modern-day Croatia and Montenegro, on the eastern shore of the Adriatic Sea. Through time it formed part of several historical states, most notably the Roman Empire, the Kingdom of Croatia (925 ...
n city of
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in 1202 at the will of the Venetian Enrico Dandolo to subsidize the debt. This diversion was adopted without the consent of Innocent III, who threatened excommunication to any who took part. Most French ignored the threat and therefore were excommunicated by Innocent III, but soon were forgiven. A second diversion occurred when the crusaders engaged in the
sack of Constantinople The sack of Constantinople occurred in April 1204 and marked the culmination of the Fourth Crusade. Crusaders sacked and destroyed most of Constantinople, the capital of the Byzantine Empire. After the capture of the city, the Latin Empire ( ...
, capital of the
Byzantine Empire The Byzantine Empire, also known as the Eastern Roman Empire, was the continuation of the Roman Empire centred on Constantinople during late antiquity and the Middle Ages. Having survived History of the Roman Empire, the events that caused the ...
, at the behest of the exiled prince Alexios. This diversion was taken without any knowledge by Innocent III and he did not learn of it until after the city had been plundered and Alexios was crowned as Alexios IV Angelos. Innocent III was heavily opposed to an attack on Constantinople and sent many letters warning the crusaders. He excommunicated the crusaders who attacked Byzantine cities, but could not stop them. One of the pope's goals had been to persuade
Alexios III Angelos Alexios III Angelos (; 1211), Latinized as Alexius III Angelus, was Byzantine Emperor from March 1195 to 17/18 July 1203. He reigned under the name Alexios Komnenos (; Aléxios Komnēnós) associating himself with the Komnenos dynasty (from whi ...
, uncle of the exiled prince, to participate in the crusade. Subsequently, Alexios IV was overthrown and Baldwin I was crowned king of the new
Latin Empire The Latin Empire, also referred to as the Latin Empire of Constantinople, was a feudal Crusader state founded by the leaders of the Fourth Crusade on lands captured from the Byzantine Empire. The Latin Empire was intended to replace the Byzantin ...
, which lasted for the next sixty years.


Albigensian Crusade

Pope Innocent III was also a zealous protector of the Catholic faith and a strenuous opponent of so-called
heretics Heresy is any belief or theory that is strongly at variance with established beliefs or customs, particularly the accepted beliefs or religious law of a religious organization. A heretic is a proponent of heresy. Heresy in Christianity, Judai ...
. His chief activity was turned against the Albigenses whose expansion he viewed as a mortal threat to Catholicism. They were especially numerous in a few cities of Northern and Southern France. During the first year of his pontificate, Innocent sent the two
Cistercian The Cistercians (), officially the Order of Cistercians (, abbreviated as OCist or SOCist), are a Catholic religious order of monks and nuns that branched off from the Benedictines and follow the Rule of Saint Benedict, as well as the contri ...
monks Rainer and Guido to the Albigenses in France to preach to them the true doctrines of the Catholic faith and dispute with them on controverted topics of religion. The two Cistercian missionaries were soon followed by Diego, Bishop of Osma, then by
Saint Dominic Saint Dominic, (; 8 August 1170 – 6 August 1221), also known as Dominic de Guzmán (), was a Castilians, Castilian Catholic priest and the founder of the Dominican Order. He is the patron saint of astronomers and natural scientists, and he a ...
and the two papal legates, Peter of Castelnau and Raoul. When, however, these missionaries were ridiculed and despised by the Albigenses, and the papal legate Castelnau was assassinated in 1208, Innocent resorted to force. He ordered the bishops of Southern France to put under interdict the participants in the murder and all the towns that gave shelter to them. He was especially incensed against Count Raymond of Toulouse who had previously been excommunicated by the murdered legate and whom the pope suspected as the instigator of the murder. The count protested his innocence and submitted to the pope but the pope placed no further trust in him. He called upon the King of France, Philip II to raise an army for the suppression of the Albigenses. Under the leadership of Simon de Montfort a cruel campaign ensued against the Albigenses which, despite the protest of Innocent, soon turned into a war of conquest. During the siege of
Béziers Béziers (; ) is a city in southern France. It is a Subprefectures in France, subprefecture of the Hérault Departments of France, department in the Occitania (administrative region), Occitanie Regions of France, region. Every August Béziers ho ...
, the
leader Leadership, is defined as the ability of an individual, group, or organization to "", influence, or guide other individuals, teams, or organizations. "Leadership" is a contested term. Specialist literature debates various viewpoints on the co ...
of the crusader assault famously but dubiously declared upon being asked how to distinguish Cathars from
Catholics The Catholic Church (), also known as the Roman Catholic Church, is the largest Christian church, with 1.27 to 1.41 billion baptized Catholics worldwide as of 2025. It is among the world's oldest and largest international institut ...
at the besieged town " Caedite eos. Novit enim Dominus qui sunt eius", which translates as: "Slay them all, God will recognize his own." This statement is often cited as "Kill them all and let God sort them out." The
Albigensian Crusade The Albigensian Crusade (), also known as the Cathar Crusade (1209–1229), was a military and ideological campaign initiated by Pope Innocent III to eliminate Catharism in Languedoc, what is now southern France. The Crusade was prosecuted pri ...
led to the deaths of approximately 20,000 men, women and children, Cathar and Catholic alike, decimating the number of practising Cathars and diminishing the region's distinct culture. The conflict took on a political flavor, directed not only against the heretics, but also the nobility of
Toulouse Toulouse (, ; ; ) is a city in southern France, the Prefectures in France, prefecture of the Haute-Garonne department and of the Occitania (administrative region), Occitania region. The city is on the banks of the Garonne, River Garonne, from ...
and vassals of the
Crown of Aragon The Crown of Aragon (, ) ;, ; ; . was a composite monarchy ruled by one king, originated by the dynastic union of the Kingdom of Aragon and the County of Barcelona (later Principality of Catalonia) and ended as a consequence of the War of the Sp ...
, and finally brought the region firmly under the control of the king of France. King Peter II of Aragon, Count of Barcelona, was directly involved in the conflict, and was killed in the course of the Battle of Muret in 1213. The conflict largely ended with the Treaty of Paris of 1229, in which the integration of the
Occitan Occitan may refer to: * Something of, from, or related to the Occitania territory in parts of France, Italy, Monaco and Spain. * Something of, from, or related to the Occitania administrative region of France. * Occitan language, spoken in parts o ...
territory in the French crown was agreed upon.


Francis of Assisi

In 1209,
Francis of Assisi Giovanni di Pietro di Bernardone ( 1181 – 3 October 1226), known as Francis of Assisi, was an Italians, Italian Mysticism, mystic, poet and Friar, Catholic friar who founded the religious order of the Franciscans. Inspired to lead a Chris ...
led his first eleven followers to Rome to seek permission from Pope Innocent III to found a new religious order which was ultimately granted.St. Francis of Assisi by G.K. Chesterton (1924), pp. 107–108 Upon entry to Rome, the brothers encountered Bishop Guido of Assisi, who had in his company Giovanni di San Paolo, the Cardinal-Bishop of Sabina. The cardinal, who was the confessor of Pope Innocent III, was immediately sympathetic to Francis and agreed to represent Francis to the pope. Reluctantly, Pope Innocent agreed to meet with Francis and the brothers the next day. After several days, the pope agreed to admit the group informally, adding that when God increased the group in grace and number, they could return for an official admittance. The group was
tonsure Tonsure () is the practice of cutting or shaving some or all of the hair on the scalp as a sign of religious devotion or humility. The term originates from the Latin word ' (meaning "clipping" or "shearing") and referred to a specific practice in ...
d.Galli (2002), pp. 74–80 This was important in part because it recognized Church authority and protected his followers from possible accusations of heresy, as had happened to the
Waldensians The Waldensians, also known as Waldenses (), Vallenses, Valdesi, or Vaudois, are adherents of a church tradition that began as an ascetic movement within Western Christianity before the Reformation. Originally known as the Poor of Lyon in the l ...
decades earlier. Though Pope Innocent initially had his doubts, following a dream in which he saw Francis holding up the Basilica of St. John Lateran (the
cathedral A cathedral is a church (building), church that contains the of a bishop, thus serving as the central church of a diocese, Annual conferences within Methodism, conference, or episcopate. Churches with the function of "cathedral" are usually s ...
of Rome, thus the 'home church' of all Christendom), he decided to endorse Francis's order. This occurred, according to tradition, on 16 April 1210, and constituted the official founding of the
Franciscan Order The Franciscans are a group of related organizations in the Catholic Church, founded or inspired by the Italian saint Francis of Assisi. They include three independent Religious institute, religious orders for men (the Order of Friars Minor bei ...
. The group, then the "Lesser Brothers" (''Order of Friars Minor'' also known as the ''Franciscan Order''), preached on the streets and had no possessions. They were centered in Porziuncola and preached first in Umbria, before expanding throughout Italy.


Other religious orders

The lesser religious orders which Pope Innocent III approved are the Hospitallers of the Holy Ghost on 23 April 1198, the
Trinitarians The Trinitarians, formally known as the Order of the Most Holy Trinity and of the Captives (; abbreviated OSsT), is a mendicant order of the Catholic Church for men founded in Cerfroid, outside Paris, in the late 12th century. From the very o ...
on 17 December 1198, and the Humiliati, in June 1201.


Fourth Council of the Lateran

On 15 November 1215, Pope Innocent III convened the
Fourth Lateran Council The Fourth Council of the Lateran or Lateran IV was convoked by Pope Innocent III in April 1213 and opened at the Lateran Palace in Rome on 11 November 1215. Due to the great length of time between the council's convocation and its meeting, m ...
which was considered to be the most important Church council of the
Middle Ages In the history of Europe, the Middle Ages or medieval period lasted approximately from the 5th to the late 15th centuries, similarly to the post-classical period of global history. It began with the fall of the Western Roman Empire and ...
. By its conclusion, it issued seventy reformatory decrees. Among other things, it encouraged creating schools and holding clergy to a higher standard than the laity. Canon 18 forbade clergymen to participate in the practice of the judicial ordeal, effectively banning its use. In order to define fundamental doctrines, the council reviewed the nature of the
Holy Eucharist The Eucharist ( ; from , ), also called Holy Communion, the Blessed Sacrament or the Lord's Supper, is a Christian rite, considered a sacrament in most churches and an ordinance in others. Christians believe that the rite was instituted by J ...
, the ordered annual confession of sins, and prescribed detailed procedures for the election of bishops. The council also mandated a strict lifestyle for clergy. Canon 68 states: Jews and Muslims shall wear a special dress to enable them to be distinguished from Christians so that no Christian shall come to marry them ignorant of who they are. Canon 69 forbade "that Jews be given preferment in public office since this offers them the pretext to vent their wrath against the Christians." It assumes that Jews blaspheme Christ, and therefore, as it would be "too absurd for a blasphemer of Christ to exercise power over Christians", Jews should not be appointed to public offices.


Death and legacy

The Council had set the beginning of the Fifth Crusade for 1217, under the direct leadership of the Church. After the Council, in the spring of 1216, Innocent moved to northern Italy in an attempt to reconcile the maritime cities of
Pisa Pisa ( ; ) is a city and ''comune'' (municipality) in Tuscany, Central Italy, straddling the Arno just before it empties into the Ligurian Sea. It is the capital city of the Province of Pisa. Although Pisa is known worldwide for the Leaning Tow ...
and
Genoa Genoa ( ; ; ) is a city in and the capital of the Italian region of Liguria, and the sixth-largest city in Italy. As of 2025, 563,947 people live within the city's administrative limits. While its metropolitan city has 818,651 inhabitan ...
by removing the excommunication cast over Pisa by his predecessor Celestine III and concluding a pact with Genoa. Innocent III, however, died suddenly at
Perugia Perugia ( , ; ; ) is the capital city of Umbria in central Italy, crossed by the River Tiber. The city is located about north of Rome and southeast of Florence. It covers a high hilltop and part of the valleys around the area. It has 162,467 ...
on 16 July 1216. He was buried in the cathedral of Perugia, where his body remained until
Pope Leo XIII Pope Leo XIII (; born Gioacchino Vincenzo Raffaele Luigi Pecci; 2March 181020July 1903) was head of the Catholic Church from 20 February 1878 until his death in July 1903. He had the fourth-longest reign of any pope, behind those of Peter the Ap ...
had it transferred to the
Lateran 250px, Basilica and Palace - side view Lateran and Laterano are names for an area of Rome, and the shared names of several buildings in Rome. The properties were once owned by the Lateranus family of the Roman Empire. The Laterani lost their p ...
in December 1891. Innocent is one of two popes (the other being
Gregory IX Pope Gregory IX (; born Ugolino di Conti; 1145 – 22 August 1241) was head of the Catholic Church and the ruler of the Papal States from 19 March 1227 until his death in 1241. He is known for issuing the '' Decretales'' and instituting the P ...
) among the 23 historical figures depicted in marble relief portraits above the gallery doors of the
U.S. House of Representatives The United States House of Representatives is a chamber of the bicameral United States Congress; it is the lower house, with the U.S. Senate being the upper house. Together, the House and Senate have the authority under Article One of th ...
in honor of their influence on the development of American law. Polish–American sculptor Joseph Kiselewski created the likeness of Innocent in the House in 1951.


Works

His Latin works include '' De miseria humanae conditionis'', a tract on
asceticism Asceticism is a lifestyle characterized by abstinence from worldly pleasures through self-discipline, self-imposed poverty, and simple living, often for the purpose of pursuing Spirituality, spiritual goals. Ascetics may withdraw from the world ...
that Innocent III wrote before becoming pope, and ''De sacro altaris mysterio'', a description and
exegesis Exegesis ( ; from the Ancient Greek, Greek , from , "to lead out") is a critical explanation or interpretation (philosophy), interpretation of a text. The term is traditionally applied to the interpretation of Bible, Biblical works. In modern us ...
of the
liturgy Liturgy is the customary public ritual of worship performed by a religious group. As a religious phenomenon, liturgy represents a communal response to and participation in the sacred through activities reflecting praise, thanksgiving, remembra ...
. According to ''Gesta Innocentii III'', the works of Innocent were evidence that he surpasses his contemporaries in philosophy and theology. * ''De missarum mysteriis'', 1195 * ''De quadripartita specie nuptiarum'' * ''On Heresy: Letter to the Archbishop of Auch'', 1198 * ''On Usury: Letter to the French bishops'', 1198 * ''On Church Independence/Tithes: Letter to a bishop'', 1198 * ''On the crusade and Trade with Saracens: Letter to the Venetians'', 1198 * '' On Jews: Decree of 1199''Medieval Sourcebook: Innocent III: Letters on Papal Polices
Fordham.edu


See also

*
List of popes This chronological list of the popes of the Catholic Church corresponds to that given in the under the heading "" (The Roman Supreme Pontiffs), excluding those that are explicitly indicated as antipopes. Published every year by the Roman Curia ...
* Cardinals created by Innocent III


Notes


References


Sources

* ''Constitutiones Concilii quarti lateranensis – Costituzioni del quarto Concilio lateranense'', ed. by di M. Albertazzi, La Finestra editrice, Lavis 2016. * * Bolton, Brenda, ''Innocent III. Studies on Papal Authority and Pastoral Care'', Variorum, "Collected Studies Series", Aldershot, 1995. * ''The Catholic Encyclopedia'', Volume VIII. Published 1910. New York: Robert Appleton Company. * Maccarrone, Michele (ed.), ''Chiesa e Stato nella dottrina di papa Innocenzo III'', Roma: Ateneo lateranense, 1941. * Maccarone, Michele, ''Studi su Innocenzo III'', Padoue, 1972. * Maccarone, Michele, ''Nuovi studi su Innocenzo III'', éd. Roberto Lambertini, Rome, Istituto storico italiano per il Medio Evo, 1995. * Maleczek, Werner, ''Papst und Kardinalskolleg von 1191 bis 1216'', Wien, 1984. * Moore, John C. "Pope Innocent III, Sardinia, and the Papal State." ''Speculum'', Vol. 62, No. 1. (Jan. 1987), pp. 81–101. . . * * Powell, James M., ''Innocent III: Vicar of Christ or Lord of the World?'' 2nd ed.(Washington: Catholic University of American Press, 1994). * Sayers, Janet E. ''Innocent III: Leader of Europe 1198–1216'', London, New York, Longman (The Medieval World), 1994. * * Andrea Sommerlechner, Andrea (dir.), ''Innocenzo III. Urbs et Orbis'', Rome, Istituto storico italiano per il Medio Evo, 2003, 2 vol. * Tillman, Helen, ''Pope Innocent III'', New York, 1980. *
Théry-Astruc, Julien, "Introduction", in ''Innocent III et le Midi'' (''Cahiers de Fanjeaux'', 50), Toulouse, Privat, 2015, pp. 11–35
*


Further reading


Kendall, Keith
"'Mute Dogs, Unable to Bark': Innocent III's Call to Combat Heresy." In ''Medieval Church Law and the Origins of the Western Legal Tradition: A Tribute to Kenneth Pennington'', edited by Wolfgang P. Müller and Mary E. Sommar, 170–178. Washington, D.C.: The Catholic University of America Press, 2006. * Kendall, Keith. "Sermons of Pope Innocent III: The 'Moral Theology' of a Pastor and Pope." PhD diss., University of Syracuse, 2003. *


External links



* ttp://www.newadvent.org/cathen/08013a.htm Innocent IIIat the Catholic Encyclopedia
Adrian Fletcher's Paradoxplace – Portrait (Subiaco) and Tomb (Lateran) of Innocent III



Cambridge History of Renassiance Philosophy





Crusades




article at Catholicism.org


Pope Innocent III
at the British Library * * *

* ttp://www.documentacatholicaomnia.eu/01_01_1198-1216-_Innocentius_III.html Complete works by Migne Patrologia Latina mit Inhaltsverzeichnis* Deed by Innocence III for the Stendal Cathedral Chapter, 6 May 1206, {{DEFAULTSORT:Innocent 03 Innocent Innocent Innocent Innocent 12th-century popes Conti, Lotario 13th-century apocalypticists 13th-century popes Lotario Conti, Lotario Innocent Innocent Innocent Italian popes People from the Metropolitan City of Rome Capital Innocent Innocent Innocent Burials at the Archbasilica of Saint John Lateran