Lothair I (9th. C.
Frankish: ''Ludher'' and
Medieval Latin
Medieval Latin was the form of Literary Latin used in Roman Catholic Church, Roman Catholic Western Europe during the Middle Ages. It was also the administrative language in the former Western Roman Empire, Roman Provinces of Mauretania, Numidi ...
: ''Lodharius'';
Dutch and
Medieval Latin
Medieval Latin was the form of Literary Latin used in Roman Catholic Church, Roman Catholic Western Europe during the Middle Ages. It was also the administrative language in the former Western Roman Empire, Roman Provinces of Mauretania, Numidi ...
: ''Lotharius'';
German: ''Lothar'';
French: ''Lothaire'';
Italian: ''Lotario''; 795 – 29 September 855) was a 9th-century
emperor of the Carolingian empire (817–855, with his father until 840) and
king of Italy
King is a royal title given to a male monarch. A king is an absolute monarch if he holds unrestricted governmental power or exercises full sovereignty over a nation. Conversely, he is a constitutional monarch if his power is restrained by ...
(818–855) and
Middle Francia
Middle Francia () was a short-lived Frankish kingdom which was created in 843 by the Treaty of Verdun after an intermittent civil war between the grandsons of Charlemagne resulted in division of the united empire. Middle Francia was allocated ...
(843–855).
Lothair I was the eldest son of the Carolingian emperor
Louis I Louis I may refer to:
Cardinals
* Louis I, Cardinal of Guise (1527–1578)
Counts
* Ludwig I, Count of Württemberg (c. 1098–1158)
* Louis I of Blois (1172–1205)
* Louis I of Flanders (1304–1346)
* Louis I of Châtillon (died 13 ...
and his wife
Ermengarde of Hesbaye,
daughter of
Ingerman the duke of
Hesbaye. On several occasions, Lothair led his full-brothers
Pepin I of Aquitaine and
Louis the German
Louis the German (German language, German: ''Ludwig der Deutsche''; c. 806/810 – 28 August 876), also known as Louis II of Germany (German language, German: ''Ludwig II. von Deutschland''), was the first king of East Francia, and ruled from 8 ...
in revolt against their father to protest against attempts to make their half-brother
Charles the Bald
Charles the Bald (; 13 June 823 – 6 October 877), also known as CharlesII, was a 9th-century king of West Francia (843–877), King of Italy (875–877) and emperor of the Carolingian Empire (875–877). After a series of civil wars during t ...
a co-heir to the Frankish domains. Upon the father's death, Charles and Louis joined forces against Lothair in
a three-year dynastic war (840–843). The struggles between the brothers led directly to the breakup of the
Frankish Empire
The Carolingian Empire (800–887) was a Frankish-dominated empire in Western and Central Europe during the Early Middle Ages. It was ruled by the Carolingian dynasty, which had ruled as kings of the Franks since 751 and as kings of the Lomba ...
assembled by their grandfather
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 ...
, and laid the foundation for the development of modern
France
France, officially the French Republic, is a country located primarily in Western Europe. Overseas France, Its overseas regions and territories include French Guiana in South America, Saint Pierre and Miquelon in the Atlantic Ocean#North Atlan ...
and
Germany
Germany, officially the Federal Republic of Germany, is a country in Central Europe. It lies between the Baltic Sea and the North Sea to the north and the Alps to the south. Its sixteen States of Germany, constituent states have a total popu ...
.
Early life and reign
Lothair was born in 795, to Louis the Pious and Ermengarde of Hesbaye. His father was the son of the reigning Emperor,
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 ...
. At the time of Lothair's birth, his father Louis was already the
King of Aquitaine
The Duchy of Aquitaine (, ; , ) was a historical fiefdom located in the western, central, and southern areas of present-day France, south of the river Loire. The full extent of the duchy, as well as its name, fluctuated greatly over the centuries ...
. Little is known of Lothair's early life, which was probably passed at the courts of his father and grandfather. In 814, the elderly emperor died, and left his sole surviving legitimate son Louis the Pious as successor to his vast empire. Being already of age, Lothair was sent to govern
Bavaria
Bavaria, officially the Free State of Bavaria, is a States of Germany, state in the southeast of Germany. With an area of , it is the list of German states by area, largest German state by land area, comprising approximately 1/5 of the total l ...
for his father, the new emperor.
In 817, Louis the Pious drew up his ''
Ordinatio Imperii''. By that act, Louis designated Lothair as his principal heir and ordered that Lothair would be the overlord of Louis' younger sons Pippin of Aquitaine (who was 20) and Louis the German (who was 13), and also the presumptive overlord of the
Kingdom of Italy
The Kingdom of Italy (, ) was a unitary state that existed from 17 March 1861, when Victor Emmanuel II of Kingdom of Sardinia, Sardinia was proclamation of the Kingdom of Italy, proclaimed King of Italy, until 10 June 1946, when the monarchy wa ...
, that was ruled at this time by their cousin, king
Bernard of Italy
Bernard (797 – 17 April 818) was the King of Italy, from 810 to 817, within the Carolingian Empire. He was an illegitimate son and successor of King Pepin of Italy. He plotted against his uncle, Emperor Louis the Pious, when the latter's ''Ord ...
. Lothair would also inherit their lands if they were to die childless. Lothair was then crowned joint emperor by his father at
Aachen
Aachen is the List of cities in North Rhine-Westphalia by population, 13th-largest city in North Rhine-Westphalia and the List of cities in Germany by population, 27th-largest city of Germany, with around 261,000 inhabitants.
Aachen is locat ...
. At the same time, Aquitaine and Bavaria were granted to his brothers Pippin and Louis, respectively, as subsidiary kingdoms.
Following the death of Bernard (818), brought on by his plotting against and blinding by Louis the Pious, Italy was awarded to Lothair. In 821, Lothair married
Ermengarde (d. 851), daughter of
Hugh the
Count of Tours. In 822, he assumed the government of
Italy
Italy, officially the Italian Republic, is a country in Southern Europe, Southern and Western Europe, Western Europe. It consists of Italian Peninsula, a peninsula that extends into the Mediterranean Sea, with the Alps on its northern land b ...
, and at Easter, 5 April 823, he received the royal crown of Italy, and was again crowned as emperor by
Pope Paschal I, this time at
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, ...
. In November 824, Lothair promulgated a statute, the ''
Constitutio Romana'', concerning the relations of pope and emperor, which reserved the supreme power to the secular potentate, and he afterwards issued various ordinances for the good government of Italy.
On Lothair's return to his father's court, his stepmother
Judith
The Book of Judith is a deuterocanonical book included in the Septuagint and the Catholic Church, Catholic and Eastern Orthodox Christianity, Christian Old Testament of the Bible but Development of the Hebrew Bible canon, excluded from the ...
won his consent to her plan for securing a kingdom for her son
Charles
Charles is a masculine given name predominantly found in English language, English and French language, French speaking countries. It is from the French form ''Charles'' of the Proto-Germanic, Proto-Germanic name (in runic alphabet) or ''* ...
, a scheme which was carried out in 829, when the young prince was given
Alemannia as king. Lothair, however, soon changed his attitude and spent the succeeding decade in constant strife over the division of the Empire with his father. He was alternately master of the Empire, and banished and confined to Italy, at one time taking up arms in alliance with his brothers and at another fighting against them, whilst the bounds of his appointed kingdom were in turn extended and reduced.
Division of the kingdom
The first rebellion began in 830. All three brothers fought their father, whom they deposed. In 831, their father was reinstated and he deprived Lothair of his imperial title and gave Italy to Charles. The second rebellion was instigated by
Angilbert II, Archbishop of Milan in 833, and again Louis was deposed in 834. Lothair, through the loyalty of the Lombards and later reconciliations, retained Italy and the imperial position through all remaining divisions of the Empire by his father.

When Louis the Pious was dying in 840, he sent the imperial insignia to Lothair, who, disregarding the various partitions, claimed the whole of the Empire. He was 45 years old when his father died. Negotiations with his brother Louis the German and his half-brother Charles, both of whom resisted this claim, were followed by an alliance of the younger brothers against Lothair.
A decisive battle was fought at
Fontenay-en-Puisaye on 25 June 841, when, in spite of his
and his allied nephew
Pepin II of Aquitaine
Pepin II, called the Younger (823 – after 864 in Senlis, Oise, Senlis), was King of Aquitaine from 838 as the successor upon the death of his father, Pepin I of Aquitaine, Pepin I. Pepin II was eldest son of Pepin I and Ingeltrude, daughter ...
's personal gallantry, Lothair was defeated and fled to Aachen. With fresh troops he began a war of plunder, but the forces of his brothers were too strong, and taking with him such treasure as he could collect, he abandoned his capital to them.
He met with the leaders of the ''
Stellinga'' in
Speyer
Speyer (, older spelling ; ; ), historically known in English as Spires, is a city in Rhineland-Palatinate in the western part of the Germany, Federal Republic of Germany with approximately 50,000 inhabitants. Located on the left bank of the r ...
and promised them his support in return for theirs, but Louis and then the native Saxon nobility put down the ''Stellinga'' in the next years.
Peace negotiations began, and in June 842 the brothers met on an island in the
Saône
The Saône ( , ; ; ) is a river in eastern France (modern Regions of France, region of Bourgogne-Franche-Comté). It is a right tributary of the Rhône, rising at Vioménil in the Vosges (department), Vosges Departments of France, department an ...
. They agreed to an arrangement which developed, after much difficulty and delay, into the
Treaty of Verdun
The Treaty of Verdun (; ), agreed to on 10 August 843, ended the Carolingian civil war and divided the Carolingian Empire between Lothair I, Louis the German, Louis II and Charles the Bald, Charles II, the surviving sons of the emperor Louis the ...
, signed in August 843. By this, Lothair received the imperial title as well as northern Italy and a long stretch of territory from the
North Sea
The North Sea lies between Great Britain, Denmark, Norway, Germany, the Netherlands, Belgium, and France. A sea on the European continental shelf, it connects to the Atlantic Ocean through the English Channel in the south and the Norwegian Se ...
to the
Mediterranean
The Mediterranean Sea ( ) is a sea connected to the Atlantic Ocean, surrounded by the Mediterranean basin and almost completely enclosed by land: on the east by the Levant in West Asia, on the north by Anatolia in West Asia and Southern ...
, essentially along the valleys of the
Rhine
The Rhine ( ) is one of the List of rivers of Europe, major rivers in Europe. The river begins in the Swiss canton of Graubünden in the southeastern Swiss Alps. It forms part of the Swiss-Liechtenstein border, then part of the Austria–Swit ...
and the
Rhône
The Rhône ( , ; Occitan language, Occitan: ''Ròse''; Franco-Provençal, Arpitan: ''Rôno'') is a major river in France and Switzerland, rising in the Alps and flowing west and south through Lake Geneva and Southeastern France before dischargi ...
; this territory includes the regions
Lorraine
Lorraine, also , ; ; Lorrain: ''Louréne''; Lorraine Franconian: ''Lottringe''; ; ; is a cultural and historical region in Eastern France, now located in the administrative region of Grand Est. Its name stems from the medieval kingdom of ...
,
Alsace
Alsace (, ; ) is a cultural region and a territorial collectivity in the Grand Est administrative region of northeastern France, on the west bank of the upper Rhine, next to Germany and Switzerland. In January 2021, it had a population of 1,9 ...
,
Burgundy
Burgundy ( ; ; Burgundian: ''Bregogne'') is a historical territory and former administrative region and province of east-central France. The province was once home to the Dukes of Burgundy from the early 11th until the late 15th century. ...
, and
Provence
Provence is a geographical region and historical province of southeastern France, which stretches from the left bank of the lower Rhône to the west to the France–Italy border, Italian border to the east; it is bordered by the Mediterrane ...
. He soon ceded Italy to his eldest son,
Louis
Louis may refer to:
People
* Louis (given name), origin and several individuals with this name
* Louis (surname)
* Louis (singer), Serbian singer
Other uses
* Louis (coin), a French coin
* HMS ''Louis'', two ships of the Royal Navy
See also
...
, and remained in his new kingdom, engaging in alternate quarrels and reconciliations with his brothers and in futile efforts to defend his lands from the attacks of the Northmen (as
Vikings
Vikings were seafaring people originally from Scandinavia (present-day Denmark, Norway, and Sweden),
who from the late 8th to the late 11th centuries raided, pirated, traded, and settled throughout parts of Europe.Roesdahl, pp. 9� ...
were known in Frankish writings) and the
Saracens
file:Erhard Reuwich Sarazenen 1486.png, upright 1.5, Late 15th-century History of Germany, German woodcut depicting Saracens
''Saracen'' ( ) was a term used both in Greek language, Greek and Latin writings between the 5th and 15th centuries to ...
(as those loyal to the various Fatimids, Umayyads and Abbasides are known in Frankish writings).
In 845 the count of Arles,
Fulcrad, led a rebellion in
Provence
Provence is a geographical region and historical province of southeastern France, which stretches from the left bank of the lower Rhône to the west to the France–Italy border, Italian border to the east; it is bordered by the Mediterrane ...
. The emperor put it down and the count joined him in an expedition against the Saracens in Italy in 846.
Death and aftermath
In 855 he became seriously ill, and despairing of recovery renounced the throne, divided his lands among his three sons, and on 23 September entered the monastery of
Prüm
Prüm () is a town in the Westeifel (Rhineland-Palatinate), Germany. Formerly a district capital, today it is the administrative seat of the ''Verbandsgemeinde'' ("collective municipality") Prüm (Verbandsgemeinde), Prüm.
Geography
Prüm lies o ...
, where he died six days later. He was buried at Prüm, where his remains were found in 1860.
It was at
Prüm
Prüm () is a town in the Westeifel (Rhineland-Palatinate), Germany. Formerly a district capital, today it is the administrative seat of the ''Verbandsgemeinde'' ("collective municipality") Prüm (Verbandsgemeinde), Prüm.
Geography
Prüm lies o ...
that Lothair was most commemorated.
The same year, Lothair's kingdom was divided between his three sons
in a deal called the
Treaty of Prüm
The Treaty of Prüm, concluded on 19 September 855, was the second of the main Partition (politics), partition treaties of the Carolingian Empire. As Emperor Lothair I was approaching death, he divided his realm of Middle Francia among his three ...
: the eldest,
Louis II, received Italy and the title of emperor; the second,
Lothair II
Lothair II (835 – 8 August 869) was a Carolingian king and ruler of northern parts of Middle Francia, that came to be known as Lotharingia, reigning there from 855 until his death in 869. He also ruled over Burgundy, holding from 855 just th ...
, received
Lotharingia
Lotharingia was a historical region and an early medieval polity that existed during the late Carolingian and early Ottonian era, from the middle of the 9th to the middle of the 10th century. It was established in 855 by the Treaty of Prüm, a ...
; the youngest,
Charles
Charles is a masculine given name predominantly found in English language, English and French language, French speaking countries. It is from the French form ''Charles'' of the Proto-Germanic, Proto-Germanic name (in runic alphabet) or ''* ...
, received
Provence
Provence is a geographical region and historical province of southeastern France, which stretches from the left bank of the lower Rhône to the west to the France–Italy border, Italian border to the east; it is bordered by the Mediterrane ...
.
Family
Lothair married
Ermengarde of Tours in 821, who died in 851.
*
Louis II (825–875) Crowned as King of Italy in 844 by
Pope Sergius II. Crowned Emperor in 850. Married
Engelberga
*Hiltrude (826–865) Married
Berengar of Spoleto.
*Bertha (c. 830–852) Married to an unknown man, but later Abbess of Avenay.
*Gisela (c. 830–856) abbess of San Salvatore at Brescia.
*
Lothair II
Lothair II (835 – 8 August 869) was a Carolingian king and ruler of northern parts of Middle Francia, that came to be known as Lotharingia, reigning there from 855 until his death in 869. He also ruled over Burgundy, holding from 855 just th ...
(835–869) Succeeded his father. Married
Teutberga, daughter of
Boso the Elder
Boso the Elder (c. 800 – c. 855), also known as Boson the Elder, was a Frankish nobleman and the earliest known ancestor of the Bosonid dynasty, a prominent aristocratic family in the Carolingian Empire. He held the title of Count of Turin, and ...
, Count of Arles.
*Rotrude (c. 840) Married
Lambert II of Nantes Lambert II (died 852) was the Frankish Count of Nantes and Prefect of the Breton March between 843 and 851. Lambert ruled the county in opposition to Amaury, the puppet count installed by Charles the Bald, King of West Francia. At his death, the c ...
.
*
Charles
Charles is a masculine given name predominantly found in English language, English and French language, French speaking countries. It is from the French form ''Charles'' of the Proto-Germanic, Proto-Germanic name (in runic alphabet) or ''* ...
(845–863) Invested with Provence, Lyon and Transjuranian Burgundy
One illegitimate child is known.
*Carloman (? – d. 853)
See also
*
Middle Francia
Middle Francia () was a short-lived Frankish kingdom which was created in 843 by the Treaty of Verdun after an intermittent civil war between the grandsons of Charlemagne resulted in division of the united empire. Middle Francia was allocated ...
*
History of Italy
Italy has been inhabited by humans Prehistoric Italy, since the Paleolithic. During antiquity, there were many ancient peoples of Italy, peoples in the Italian peninsula, including Etruscan civilization, Etruscans, Latins, Samnites, Umbri, Cisal ...
*
History of Burgundy
*
History of Provence
References
Sources
*
*
*
*
*
*
*
*
*
*
*
External links
*
Surviving letters of Lothar I in Latin with English translation by Richard Matthew Pollard.
{{DEFAULTSORT:Lothair 01
795 births
855 deaths
9th-century Holy Roman Emperors
9th-century kings of Italy
9th-century dukes of Bavaria
Frankish warriors
Dukes of Lorraine
Dukes of Maine
Eifel in the Middle Ages
Rebel princes
Sons of emperors
Frankish kings