Ostoja of Bosnia

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Stephen Ostoja
King of Bosnia
First reign 1398–1404
Predecessor Jelena Gruba
Successor Stephen Tvrtko II
King of Bosnia
Second reign 1409–1418
Predecessor Stephen Tvrtko II
Successor Stephen Ostojić
Died September 1418
Spouse Vitača
Jelena Nelipčić
Issue Stephen Ostojić of Bosnia
Radivoj of Bosnia
Stephen Thomas of Bosnia
House House of Kotromanić
Religion Church of Bosnia[1]

Stephen Ostoja[2] (died September 1418) was King of Bosnia from 1398 to 1404 and from 1409 to 1418.

Family connections[edit]

He was a member of the House of Kotromanić, most likely son of Vladislaus and brother of King Stephen Tvrtko I. When duke Hrvoje Vukčić in 1416 died, King Ostoja divorced his old wife Kujava from the house of Radenović and married Hrvoje's widow Jelena Nelipčić the next year.[3] Jelena Nelipčić was the sister of Prince Ivan III Nelipac from the Croatian noble Nelipić (Nelipac) family. That way Ostoja inherited most of Hrvoje's lands.

Rise to power[edit]

Ostoja was brought to power by the forces of Hrvoje Vukčić, (Ban of Croatia, Grand Duke of Bosnia and a Herzog of Split), which deposed Queen Jelena Gruba in 1398. In 1403 he sided with King Ladislaus of Naples in his plights against the Hungarian King Sigismund, Bosnia's liege. King Ostoja led a war against the Republic of Dubrovnik, a Hungarian vassalage that year. In 1404, the Bosnians under Hrvoje Vukčić replaced him by his brother Tvrtko II because of his poor rule. He had to flee to Hungary.

In 1408, Hungarian King Sigismund managed to defeat the Bosnian nobility and King Stephen Tvrtko II and restore Ostoja to the throne in 1409. King Stephen Ostoja ended the decade-long dispute with the Hungarians but recognizing the suzeiranity of the Hungarian crown and in 1412 visited the Hungarian throne in Buda together with the rest of the Bosnian and Serbian nobility including Serbian Despot Stefan Lazarević.

King Stephen Ostoja died in September 1418 and his oldest son from his marriage with Kujava, Stephen Ostojić, was elected King of Bosnia.

See also[edit]


  1. ^ Fine, John Van Antwerp (1994). The Late Medieval Balkans: A Critical Survey from the Late Twelfth Century to the Ottoman Conquest. Michigan: The University of Michigan Press. p. 281. ISBN 0472100793.
  2. ^ His name in Bosnian is rendered Stjepan Ostoja (Стјепан Остоја), while in Croatian it's Stjepan Ostoja. In Serbian, he is called Stefan Ostoja (Сефан Остоја).
  3. ^ John Van Antwerp Fine, Bosnian Institute; The Bosnian Church: Its Place in State and Society from the Thirteenth to the Fifteenth Century, Saqi in association with The Bosnian Institute, 2007
Regnal titles
Preceded by
Jelena Gruba
King of Bosnia
Succeeded by
Tvrtko II
Preceded by
Tvrtko II
King of Bosnia
Succeeded by
Stephen Ostojić