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Catherine of Habsburg, Duchess of Bavaria

Otto III
Béla V
Otto (Chronica Hungarorum).jpg
Duke of Lower Bavaria
Reign 3 February 1290 – 9 November 1312
Predecessor Henry XIII
Successor Henry XV
King of Hungary
Reign 6 December 1305 – 1308
Coronation 6 December 1305 (Székesfehérvár)
Predecessor Wenceslaus
Successor Charles I
Born (1261-02-11)11 February 1261
Burghausen
Died 9 November 1312(1312-11-09) (aged 51)
Landshut
Burial Kloster Seligenthal
Spouse Catherine of Habsburg
Agnes of Glogau
Issue
among others...
Henry XV, Duke of Bavaria
House House of Wittelsbach
Father Henry XIII, Duke of Bavaria
Mother Elizabeth of Hungary
Religion Roman Catholicism

Otto III (11 February 1261 – 9 November 1312), a member of the Wittelsbach dynasty, was the Duke of Lower Bavaria from 1290 to 1312 and the King of Hungary and Croatia between 1305 and 1307. His reign in Hungary was disputed by Charles Robert of the Angevin dynasty.

Otto was born in Burghausen, the son of Henry XIII, Duke of Bavaria, and Elizabeth of Hungary.

Otto succeeded his father in 1290 as duke of Lower Bavaria, together with his younger brothers, Louis III and Stephen I. He was in opposition to Habsburg and tried to regain Styria which Bavaria had lost in 1180. Otto supported Adolf, King of Germany against Habsburg and fought on his side in the Battle of Göllheim. The Hungarian crown was offered to Otto, a grandson of Béla IV of Hungary, in 1301 but he did not accept before 1305.

In August 1305, his opponent, Wenceslaus III of Bohemia, who had inherited Bohemia from his father, renounced his claim to Hungary on behalf of Otto III. Since the Habsburg Albert I of Germany was blocking the way through Austria, Otto disguised himself as a merchant, and reached Buda in November 1305.

He was then crowned with the Holy Crown of Hungary in Székesfehérvár by the Bishops of Veszprém and Csanád on 6 December. He named himself Béla V after his grandfather. However, Otto was not able to strengthen his rule. In the course of 1306, Otto's second opponent Charles of Anjou occupied Esztergom, Szepes Castle, Zólyom and some other fortresses in the northern parts of the kingdom, and in the next year he also occupied Buda. In June 1307, Duke Otto III visited the powerful Voivode of Transylvania, Ladislaus Kán, but the latter imprisoned him. On 10 October 1307, the magnates presented at the assembly in Rákos proclaimed Charles king, but the most powerful aristocrats (Matthew III Csák, Amadé Aba and Ladislaus Kán) ignored him as well. At the end of the year, Ladislaus Kán set Otto free who then left the country, but the Voivode of Transylvania still denied to hand over the Holy Crown of Hungary to Charles, whose legitimacy could be questioned without the coronation with the Holy Crown.


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