
The Christianization of Lithuania () occurred in 1387, initiated by the Lithuanian royals
Jogaila,
King of Poland
Poland was ruled at various times either by dukes and princes (10th to 14th centuries) or by kings (11th to 18th centuries). During the latter period, a tradition of Royal elections in Poland, free election of monarchs made it a uniquely electab ...
and
Grand Duke of Lithuania, and his cousin
Vytautas the Great. It signified the official adoption of
Catholic Christianity by
Lithuania
Lithuania, officially the Republic of Lithuania, is a country in the Baltic region of Europe. It is one of three Baltic states and lies on the eastern shore of the Baltic Sea, bordered by Latvia to the north, Belarus to the east and south, P ...
, the last
pagan country in
Europe
Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...
.
However, Lithuania's first ruler to be baptised was
Mindaugas in 1250s. This event ended one of the most complicated and lengthiest processes of
Christianization
Christianization (or Christianisation) is a term for the specific type of change that occurs when someone or something has been or is being converted to Christianity. Christianization has, for the most part, spread through missions by individu ...
in European history.
History
Early contacts with Christianity
Lithuanians' contacts with the Christian religion predated the establishment of the
Duchy of Lithuania in the 13th century. The first known record of
the name Lithuania (''Litua''), recorded in the
Annals of Quedlinburg in 1009, relates to the mission led by
Bruno of Querfurt, who baptised several rulers of the
Yotvingians, a nearby
Baltic tribe. Nonetheless Bruno didn't reach
Lithuania proper.
Lithuanians had more active contacts with the
Kievan Rus'
Kievan Rus', also known as Kyivan Rus,.
* was the first East Slavs, East Slavic state and later an amalgam of principalities in Eastern Europe from the late 9th to the mid-13th century.John Channon & Robert Hudson, ''Penguin Historical At ...
and subsequent
Eastern Slavic states, which had adopted
Eastern Orthodox Christianity
Eastern Orthodoxy, otherwise known as Eastern Orthodox Christianity or Byzantine Christianity, is one of the three main Branches of Christianity, branches of Chalcedonian Christianity, alongside Catholic Church, Catholicism and Protestantism ...
following the
Christianization of Kievan Rus' in the 10th century. From the 12th century onwards, Orthodox missions reached
Latgale and
Nalšia, directed from
Novgorod
Veliky Novgorod ( ; , ; ), also known simply as Novgorod (), is the largest city and administrative centre of Novgorod Oblast, Russia. It is one of the oldest cities in Russia, being first mentioned in the 9th century. The city lies along the V ...
,
Pskov
Pskov ( rus, Псков, a=Ru-Псков.oga, p=psˈkof; see also Names of Pskov in different languages, names in other languages) is a types of inhabited localities in Russia, city in northwestern Russia and the administrative center of Pskov O ...
, and
Polotsk. By the end of that century, Catholic missionaries began arriving in the Baltic territories, with
Saint Meinhard, the
Bishop of Livonia, as a pioneer.
As the dukes of Lithuania extended their dominion eastwards, the influence of the Slavic states on their culture increased. Their subordinates and the people followed their example, borrowing, for instance, many of the East Slavic versions of Christian names in the 11th–12th centuries. This borrowing became increasingly widespread among the pagan population in
Aukštaitija, though much less so in
Samogitia. The influence of Orthodox Christianity on
pagan Lithuanian culture is evidenced in about one-third of present-day Lithuanian surnames which are constructed from
baptismal names are
Old Church Slavonic
Old Church Slavonic or Old Slavonic ( ) is the first Slavic languages, Slavic literary language and the oldest extant written Slavonic language attested in literary sources. It belongs to the South Slavic languages, South Slavic subgroup of the ...
in origin. In addition, the Lithuanian words for "church", "baptism", "Christmas" and "
fast" are classed as loanwords from Ruthenian rather than Polish.
Baptism of Mindaugas
The emergence of a monastic state of the
Livonian Order around the Lithuanian borders made it rather urgent to choose a state religion. The first Lithuanian Grand Duke to adopt
Western Christianity
Western Christianity is one of two subdivisions of Christianity (Eastern Christianity being the other). Western Christianity is composed of the Latin Church and Protestantism, Western Protestantism, together with their offshoots such as the O ...
was
Mindaugas, although his nephew and rival
Tautvilas had done that earlier, in 1250. The first translations of Catholic
prayers from
German were made during his reign and have been known since.

In 1249, Tautvilas' ally
Daniel of Galicia
Daniel Romanovich (1201–1264) was Prince of Galicia (1205–1207; 1211–1212; 1230–1232; 1233–1234; 1238–1264), Prince of Volhynia, Volhynia (1205–1208; 1215–1238), Grand Prince of Kiev (1240), and King of Ruthenia (1253–1264).
B ...
attacked Navahradak, and in 1250, another ally of Tautvilas, the Livonian Order, organized a major raid against
Nalšia land and Mindaugas' domains in
Lithuania proper. Attacked from the south and north and facing the possibility of unrest elsewhere, Mindaugas was placed in an extremely difficult position, but managed to use the conflicts between the Livonian Order and the
Archbishop of Riga in his own interests. In 1250 or 1251, Mindaugas agreed to receive baptism and relinquish control over some lands in western Lithuania, for which he was to receive a crown in return.
Mindaugas and his family were baptised in the Catholic rite in 1250 or 1251. On July 17, 1251
Pope Innocent IV issued a
papal bull proclaiming Lithuania a
Kingdom and the state was placed under the jurisdiction of the
Bishop of Rome. Mindaugas and his wife
Morta were crowned at some time during the summer of 1253, and the
Kingdom of Lithuania, formally a Christian state, was established. Even after nominally becoming a Catholic, King Mindaugas did not cease sacrificing to his own gods. Despite the ruling family's baptism, Lithuania had not become a truly Christian state, since there were no fruitful efforts to convert its population; Lithuanians and
Samogitians stood firmly for
their ancestral religion. Some of this might be attributed to the
Golden Horde tumanbashi Burundaj's campaign in 1259 and 1260, which caused destruction in Lithuania proper and
Nalšia.
Vacillation between East and West
Mindaugas' successors did not express enough interest in following in his footsteps. There were decades of vacillation between the Latin and the Orthodox options. "For
Gediminas
Gediminas ( – December 1341) was Grand Duke of Lithuania from 1315 or 1316 until his death in 1341.
He is considered the founder of Lithuania's capital Vilnius (see: Iron Wolf legend). During his reign, he brought under his rule lands from t ...
and
Algirdas
Algirdas (; , ; – May 1377) was List of Lithuanian monarchs, Grand Duke of Lithuania from 1345 to 1377. With the help of his brother Kęstutis (who defended the western border of the Duchy) he created an empire stretching from the pre ...
, retention of paganism provided a useful diplomatic tool and weapon... that allowed them to use promises of conversion as a means of preserving their power and independence". Grand Duke Algirdas had pursued an option of "dynamic balance". Throughout his reign, he teased both
Avignon
Avignon (, , ; or , ; ) is the Prefectures in France, prefecture of the Vaucluse department in the Provence-Alpes-Côte d'Azur region of southeastern France. Located on the left bank of the river Rhône, the Communes of France, commune had a ...
and
Constantinople
Constantinople (#Names of Constantinople, see other names) was a historical city located on the Bosporus that served as the capital of the Roman Empire, Roman, Byzantine Empire, Byzantine, Latin Empire, Latin, and Ottoman Empire, Ottoman empire ...
with the prospects of a conversion; several unsuccessful attempts were made to negotiate the conversion of Lithuania.
To avoid further clashes with the
Teutonic Order
The Teutonic Order is a religious order (Catholic), Catholic religious institution founded as a military order (religious society), military society in Acre, Israel, Acre, Kingdom of Jerusalem. The Order of Brothers of the German House of Sa ...
, in 1349, Lithuanian co-ruler
Kęstutis started the negotiations with Pope
Clement VI for the conversion and had been promised royal crowns for himself and his sons. Algirdas willingly remained aside of the business and dealt with the order in the Ruthenian part of the state. The intermediary in the negotiations, Polish King
Casimir III, made an unexpected assault on
Volhynia
Volhynia or Volynia ( ; see #Names and etymology, below) is a historic region in Central and Eastern Europe, between southeastern Poland, southwestern Belarus, and northwestern Ukraine. The borders of the region are not clearly defined, but in ...
and
Brest in October 1349 that ruined Kęstutis' plan. During the Polish-Lithuanian war for Volhynia, King
Louis I of Hungary
Louis I, also Louis the Great (; ; ) or Louis the Hungarian (; 5 March 132610 September 1382), was King of Hungary and Croatia from 1342 and King of Poland from 1370. He was the first child of Charles I of Hungary and his wife, Elizabeth of ...
offered a peace agreement to Kęstutis on 15 August 1351, according to which Kęstutis obliged himself to accept Christianity and provide the
Kingdom of Hungary
The Kingdom of Hungary was a monarchy in Central Europe that existed for nearly a millennium, from 1000 to 1946 and was a key part of the Habsburg monarchy from 1526-1918. The Principality of Hungary emerged as a Christian kingdom upon the Coro ...
with military aid, in exchange of the royal crown. Kęstutis confirmed the agreement by performing a pagan ritual to convince the other side. In fact, Kęstutis had no intentions to abide the agreement and ran away on his way to
Buda
Buda (, ) is the part of Budapest, the capital city of Hungary, that lies on the western bank of the Danube. Historically, “Buda” referred only to the royal walled city on Castle Hill (), which was constructed by Béla IV between 1247 and ...
.
By the 14th century, the
Grand Duchy of Lithuania
The Grand Duchy of Lithuania was a sovereign state in northeastern Europe that existed from the 13th century, succeeding the Kingdom of Lithuania, to the late 18th century, when the territory was suppressed during the 1795 Partitions of Poland, ...
had emerged as a successor to
Kievan Rus in the western part of its dominions. Although its sovereign was pagan, the majority of the population was Slavic and Orthodox. To legitimize their rule in these areas, the Lithuanian royalty frequently married into the Orthodox
Rurikid aristocracy of Eastern Europe. As a result, some Lithuanian rulers were baptised into Eastern Orthodoxy either as children (
Švitrigaila
Švitrigaila (before 1370 – 10 February 1452; sometimes spelled Svidrigiello) was the Grand Duke of Lithuania from 1430 to 1432. He spent most of his life in largely unsuccessful dynastic struggles against his cousins Vytautas and Sigismund K� ...
) or adults. The first one was
Vaišelga, son and heir of
Mindaugas, who took monastic vows at an Orthodox monastery in Lavrashev near
Novgorodok and later established a convent there.
Christianization by Jogaila and Vytautas
The final attempt to Christianize Lithuania was made by
Jogaila. Jogaila's Russian mother urged him to marry Sofia, daughter of
Prince Dmitri of Moscow, who required him first to convert to Orthodoxy and to make Lithuania a fief of the
Grand Duchy of Moscow
The Grand Principality of Moscow, or Muscovy, known as the Principality of Moscow until 1389, was a late medieval Russian monarchy. Its capital was the city of Moscow. Originally established as a minor principality in the 13th century, the gra ...
. That option, however, was unrealistic and unlikely to halt the crusades against Lithuania by the Teutonic Order. Jogaila chose therefore to accept a Polish proposal to become a Catholic and marry
Jadwiga of Poland. On these and other terms, on 14 August 1385, at the castle of
Krėva, Jogaila agreed to adopt Christianity, signing the
Act of Krėva.
Jogaila was duly baptised at the
Wawel Cathedral in
Kraków
, officially the Royal Capital City of Kraków, is the List of cities and towns in Poland, second-largest and one of the oldest cities in Poland. Situated on the Vistula River in Lesser Poland Voivodeship, the city has a population of 804,237 ...
on 15 February 1386 and became Władysław II Jagiełło, the
King of Poland
Poland was ruled at various times either by dukes and princes (10th to 14th centuries) or by kings (11th to 18th centuries). During the latter period, a tradition of Royal elections in Poland, free election of monarchs made it a uniquely electab ...
. The royal baptism was followed by the conversion of most of Jogaila's court and knights, as well as Jogaila's brothers
Karigaila,
Vygantas,
Švitrigaila
Švitrigaila (before 1370 – 10 February 1452; sometimes spelled Svidrigiello) was the Grand Duke of Lithuania from 1430 to 1432. He spent most of his life in largely unsuccessful dynastic struggles against his cousins Vytautas and Sigismund K� ...
and cousin
Vytautas
Vytautas the Great (; 27 October 1430) was a ruler of the Grand Duchy of Lithuania. He was also the prince of Grodno (1370–1382), prince of Lutsk (1387–1389), and the postulated king of the Hussites.
In modern Lithuania, Vytautas is revere ...
. Jogaila sent Dobrogost, Bishop of
Poznań
Poznań ( ) is a city on the Warta, River Warta in west Poland, within the Greater Poland region. The city is an important cultural and business center and one of Poland's most populous regions with many regional customs such as Saint John's ...
, as ambassador to Pope
Urban VI with a petition for the erection of an
episcopal see at Vilnius and the appointment of
Andrzej Jastrzębiec to fill it.

Jogaila returned to Lithuania in February 1387. The baptism of nobles and their peasants was at first carried out in the capital
Vilnius
Vilnius ( , ) is the capital of and List of cities in Lithuania#Cities, largest city in Lithuania and the List of cities in the Baltic states by population, most-populous city in the Baltic states. The city's estimated January 2025 population w ...
and its environs. The nobility and some peasants in
Aukštaitija were baptized in spring, followed by the rest of the Lithuanian nobility. The parishes were established in ethnic Lithuania and the new
Vilnius Cathedral was built in 1387 on the site of a demolished pagan temple. According to the information of disputed accuracy provided by
Jan Długosz
Jan Długosz (; 1 December 1415 – 19 May 1480), also known in Latin as Johannes Longinus, was a Polish priest, chronicler, diplomat, soldier, and secretary to Bishop Zbigniew Oleśnicki of Kraków. He is considered Poland's first histo ...
, the first
parochial churches were built in Lithuanian
pagan towns
Vilkmergė,
Maišiagala
Maišiagala is a historic town in Vilnius district municipality, Lithuania. It is located about northwest of Vilnius city municipality near the Vilnius–Panevėžys highway. According to the 2021 census, it had a population of 1 562, a decreas ...
,
Lida,
Nemenčinė,
Medininkai,
Kreva, Haina and Abolcy, all belonging to the Jogaila's patrimony. Jogaila destroyed the old places of worship:
altar
An altar is a table or platform for the presentation of religion, religious offerings, for sacrifices, or for other ritualistic purposes. Altars are found at shrines, temples, Church (building), churches, and other places of worship. They are use ...
s,
sacred groves, killed
grass snakes and other snakes that were regarded as divine guardians of households at the time.
The
papal bull issued by
Pope Urban VI
Pope Urban VI (; ; c. 1318 – 15 October 1389), born Bartolomeo Prignano (), was head of the Catholic Church from 8 April 1378 to his death, in October 1389. He was the last pope elected from outside the College of Cardinals. His pontificate be ...
on 12 March 1388 has information about destruction of pagan cult objects in
Vilnius
Vilnius ( , ) is the capital of and List of cities in Lithuania#Cities, largest city in Lithuania and the List of cities in the Baltic states by population, most-populous city in the Baltic states. The city's estimated January 2025 population w ...
and provided legal grounds for establishment of the
Vilnius Cathedral.
On 19 April 1389, Pope Urban VI recognized the status of Lithuania as a Roman Catholic state.
Lithuania was the last state in
Europe
Europe is a continent located entirely in the Northern Hemisphere and mostly in the Eastern Hemisphere. It is bordered by the Arctic Ocean to the north, the Atlantic Ocean to the west, the Mediterranean Sea to the south, and Asia to the east ...
to be
Christianized.
Samogitia was the last ethnic
region of Lithuania to become Christianized in 1413, following the defeat of the
Teutonic Order
The Teutonic Order is a religious order (Catholic), Catholic religious institution founded as a military order (religious society), military society in Acre, Israel, Acre, Kingdom of Jerusalem. The Order of Brothers of the German House of Sa ...
in the
Battle of Grunwald and the
Peace of Thorn and its subsequent return to the Lithuanian control.
In November 1413, Vytautas himself sailed
Neman River and
Dubysa, reached the environs of
Betygala, where he baptised the first groups of
Samogitians. In 1416, the construction of eight first parochial churches was started. The Diocese of Samogitia was established on 23 October 1417 and
Matthias of Trakai became the first
Bishop of Samogitia.
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 ...
was built in
Medininkai around 1464.
Aftermath
Ethnic
Lithuanian nobles were the main converts to Catholicism, but paganism remained strong among the peasantry. Pagan customs prevailed for a long time among the common people of Lithuania and were covertly practiced. There had been no persecution of priests and adherents of the old faith. However, by the 17th century, following the
Counter-Reformation
The Counter-Reformation (), also sometimes called the Catholic Revival, was the period of Catholic resurgence that was initiated in response to, and as an alternative to or from similar insights as, the Protestant Reformations at the time. It w ...
(1545–1648), the Roman Catholic faith had essentially taken precedence over earlier pagan beliefs.
The conversion and its political implications had lasting repercussions for the history of Lithuania. As the majority of the population of the Grand Duchy of Lithuania outside
Lithuania proper was Orthodox and the elite gradually converted to
Roman Catholicism
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 ...
, religious tensions increased. Some of the Orthodox
Gediminids left Lithuania for
Muscovy, where they gave rise to such families as the
Galitzine and the
Troubetzkoy. The Orthodox population of present-day
Ukraine
Ukraine is a country in Eastern Europe. It is the List of European countries by area, second-largest country in Europe after Russia, which Russia–Ukraine border, borders it to the east and northeast. Ukraine also borders Belarus to the nor ...
and eastern
Belarus
Belarus, officially the Republic of Belarus, is a landlocked country in Eastern Europe. It is bordered by Russia to the east and northeast, Ukraine to the south, Poland to the west, and Lithuania and Latvia to the northwest. Belarus spans an a ...
often sympathized with the rulers of Muscovy, who portrayed themselves as the champions of Orthodoxy. These feelings contributed to such reverses as the
Battle of Vedrosha, which crippled the Grand Duchy and undermined its position as a dominant power in
Eastern Europe
Eastern Europe is a subregion of the Europe, European continent. As a largely ambiguous term, it has a wide range of geopolitical, geographical, ethnic, cultural and socio-economic connotations. Its eastern boundary is marked by the Ural Mountain ...
.
On the other hand, the conversion to Roman Catholicism facilitated Lithuania's integration into the cultural sphere of
Central Europe
Central Europe is a geographical region of Europe between Eastern Europe, Eastern, Southern Europe, Southern, Western Europe, Western and Northern Europe, Northern Europe. Central Europe is known for its cultural diversity; however, countries in ...
and paved the way to the political alliance of Lithuania and Poland, finalized as the
Union of Lublin
The Union of Lublin (; ) was signed on 1 July 1569 in Lublin, Poland, and created a single state, the Polish–Lithuanian Commonwealth, one of the largest countries in Europe at the time. It replaced the personal union of the Crown of the Kingd ...
in 1569.
See also
*
Northern Crusades
The Northern Crusades or Baltic Crusades were Christianization campaigns undertaken by Catholic Church, Catholic Christian Military order (society), military orders and kingdoms, primarily against the paganism, pagan Balts, Baltic, Baltic Finns, ...
*
History of Lithuania
References
External links
The Conversion of Lithuania 1387
{{Lithuania topics
1387 in Europe
14th century in Lithuania
History of Christianity in Lithuania
Lithuania, Christianization of
14th-century Catholicism
Paganism in Lithuania