The First Congress of Vienna was held in 1515, attended by the Holy Roman Emperor, Maximilian I, and the

Jagiellonian The Jagiellonian dynasty (, pl, dynastia jagiellońska), otherwise the Jagiellon dynasty ( pl, dynastia Jagiellonów), the House of Jagiellon ( pl, Dom Jagiellonów), or simply the Jagiellons ( pl, Jagiellonowie), was the name assumed by a cad ...

brothers, Vladislaus II,

King of Hungary The King of Hungary ( hu, magyar király) was the ruling head of state of the Kingdom of Hungary from 1000 (or 1001) to 1918. The style of title "Apostolic King of Hungary" (''Apostoli Magyar Király'') was endorsed by Pope Clement XIII in 17 ...

and

King of Bohemia The Duchy of Bohemia was established in 870 and raised to the Kingdom of Bohemia in 1198. Several Bohemian monarchs ruled as non-hereditary kings beforehand, first gaining the title in 1085. From 1004 to 1806, Bohemia was part of the Holy Roman ...

, and Sigismund I,

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 free election of monarchs made it a uniquely electable position in Europe (16t ...

and

Grand Duke of Lithuania The monarchy of Lithuania concerned the monarchical head of state of Kingdom of Lithuania, Lithuania, which was established as an Absolute monarchy, absolute and hereditary monarchy. Throughout Lithuania's history there were three Duke, ducal D ...

. Previously, Vladislaus and Maximilian had agreed on a Habsburg-Jagiellon mutual-succession treaty in 1506."Panonnian Renaissance: The Hunyadis and the Jagiello Age (1437-1526)"
''Encyclopaedia Humana Hungarica'' It became a turning point in the history of

Central Europe Central Europe is an area of Europe between Western Europe and Eastern Europe, based on a common historical, social and cultural identity. The Thirty Years' War (1618–1648) between Catholicism and Protestantism significantly shaped the ...

. After the death of Vladislaus, and later his son and heir, the childless King Louis II at the

Battle of Mohács The Battle of Mohács (; hu, mohácsi csata, tr, Mohaç Muharebesi or Mohaç Savaşı) was fought on 29 August 1526 near Mohács, Kingdom of Hungary, between the forces of the Kingdom of Hungary and its allies, led by Louis II, and thos ...

against the Ottomans in 1526, the Habsburg-Jagellion mutual succession treaty ultimately increased the power of the Habsburgs and diminished that of the Jagiellonians. Maximilian had been supporting

Vasili III Vasili III Ivanovich (russian: Василий III Иванович, 25 March 14793 December 1533) was the Grand Prince of Moscow from 1505 to 1533. He was the son of Ivan III Vasiliyevich and Sophia Paleologue and was christened with the name ...

of the

Grand Duchy of Moscow The Grand Duchy of Moscow, Muscovite Russia, Muscovite Rus' or Grand Principality of Moscow (russian: Великое княжество Московское, Velikoye knyazhestvo Moskovskoye; also known in English simply as Muscovy from the Lat ...

against the Jagiellonian rulers of Lithuania,

Poland Poland, officially the Republic of Poland, , is a country in Central Europe. Poland is divided into Voivodeships of Poland, sixteen voivodeships and is the fifth most populous member state of the European Union (EU), with over 38 mill ...

Hungary Hungary ( hu, Magyarország ) is a landlocked country in Central Europe. Spanning of the Carpathian Basin, it is bordered by Slovakia to the north, Ukraine to the northeast, Romania to the east and southeast, Serbia to the south, Croa ...

and Bohemia, to advance the Habsburg claims to the succession in Hungary and Bohemia. The Jagiellonians had been facing simultaneous threats on all fronts, from the Emperor, the Russians, the

Teutonic Order The Order of Brothers of the German House of Saint Mary in Jerusalem, commonly known as the Teutonic Order, is a Catholic religious institution founded as a military society in Acre, Kingdom of Jerusalem. It was formed to aid Christians on ...

under

Albert of Prussia Albert of Prussia (german: Albrecht von Preussen; 17 May 149020 March 1568) was a German prince who was the 37th Grand Master of the Teutonic Knights, who after converting to Lutheranism, became the first ruler of the Duchy of Prussia, the s ...

, and the

Crimean Tatars , flag = Flag of the Crimean Tatar people.svg , flag_caption = Flag of Crimean Tatars , image = Love, Peace, Traditions.jpg , caption = Crimean Tatars in traditional clothing in front of the Khan's Palace ...

. The city of

Smolensk Smolensk ( rus, Смоленск, p=smɐˈlʲensk, a=smolensk_ru.ogg) is a city and the administrative center of Smolensk Oblast, Russia, located on the Dnieper River, west-southwest of Moscow. First mentioned in 863, it is one of the oldest ...

fell to the Russians in 1514, and Maximilian planned a congress to cement his claims in central Europe. However, Lithuanian and

Polish Polish may refer to: * Anything from or related to Poland, a country in Europe * Polish language * Poles, people from Poland or of Polish descent * Polish chicken *Polish brothers (Mark Polish and Michael Polish, born 1970), American twin screenwr ...

forces decisively defeated the Russian army at the

Battle of Orsha The Battle of Orsha ( be, Бітва пад Оршай, translit=Bitva pad Oršaj, lt, Oršos mūšis, pl, bitwa pod Orszą, uk, Битва під Оршею), was a battle fought on 8 September 1514, between the allied forces of the Grand Du ...

on 8 September 1514, changing the balance of power. The Congress opened at the Emperor's border, at

Bratislava Bratislava (, also ; ; german: Preßburg/Pressburg ; hu, Pozsony) is the capital and largest city of Slovakia. Officially, the population of the city is about 475,000; however, it is estimated to be more than 660,000 — approximately 140% o ...

(

Pressburg Bratislava (, also ; ; german: Preßburg/Pressburg ; hu, Pozsony) is the capital and largest city of Slovakia. Officially, the population of the city is about 475,000; however, it is estimated to be more than 660,000 — approximately 140% of ...

Pozsony Bratislava (, also ; ; german: Preßburg/Pressburg ; hu, Pozsony) is the capital and largest city of Slovakia. Officially, the population of the city is about 475,000; however, it is estimated to be more than 660,000 — approximately 140% of ...

) in

, where Maximilian's representative met Vladislaus and Sigismund, and concluded after they travelled together to Austria where the two kings met the emperor and went on to

Vienna en, Viennese , iso_code = AT-9 , registration_plate = W , postal_code_type = Postal code , postal_code = , timezone = CET , utc_offset = +1 , timezone_DST ...

. The Emperor promised to cease his support of Moscow against Lithuania and Poland, and to arbitrate in disputes between the Teutonic Order and Poland under the

Second Treaty of Thorn The Peace of Thorn or Toruń of 1466, also known as the Second Peace of Thorn or Toruń ( pl, drugi pokój toruński; german: Zweiter Friede von Thorn), was a peace treaty signed in the Hanseatic city of Thorn (Toruń) on 19 October 1466 betwee ...

. Maximilan and Vladislaus decided in the congress: their mutual succession treaty was further confirmed by a double wedding. Accordingly, Vladislaus's only son, Louis, married the Emperor's granddaughter Mary; and her brother, Archduke Ferdinand, married Vladislaus' daughter, Anna. The Habsburg claims to the succession in Hungary and Bohemia were advanced substantially by the marriages. A woodcut by Albrecht Dürer commemorates the double wedding on 22 July 1515. Vladislaus died on 13 March 1516, and Maximilian died on 12 January 1519, but his designs were ultimately successful: on Louis's death in 1526, he was succeeded as King of Bohemia by Maximilian's grandson,

Ferdinand I, Holy Roman Emperor Ferdinand I ( es, Fernando I; 10 March 1503 – 25 July 1564) was Holy Roman Emperor from 1556, King of Bohemia, Hungary, and Croatia from 1526, and Archduke of Austria from 1521 until his death in 1564.Milan Kruhek: Cetin, grad izbornog sa ...

References

* ''Borderlands of Western Civilization: A History of East Central Europe'', Oskar Halecki, 1952. . {{Treaties of Hungary 1515 in Europe Treaties of the Holy Roman Empire 16th century in Vienna Treaties of the Grand Duchy of Lithuania Treaties of the Kingdom of Poland (1385–1569) Treaties of the Kingdom of Hungary (1000–1918) 1515 treaties Maximilian I, Holy Roman Emperor