The Battle of Isaszeg was fought between

King King is the title given to a male monarch in a variety of contexts. The female equivalent is queen, which title is also given to the consort of a king. *In the context of prehistory, antiquity and contemporary indigenous peoples, the tit ...

Béla IV of Hungary Béla IV (1206 – 3 May 1270) was King of Hungary and Croatia between 1235 and 1270, and Duke of Styria from 1254 to 1258. As the oldest son of King Andrew II, he was crowned upon the initiative of a group of influential noblemen in his father ...

and his son,

Stephen Stephen or Steven is a common English first name. It is particularly significant to Christians, as it belonged to Saint Stephen ( grc-gre, Στέφανος ), an early disciple and deacon who, according to the Book of Acts, was stoned to death; ...

, who served as Junior King and

Duke of Transylvania The Duke of Transylvania ( hu, erdélyi herceg; la, dux Transylvaniae) was a title of nobility four times granted to a son or a brother of the Hungarian monarch. The dukes of the first and second creations, Béla (1226–1235) and Stephen ( ...

. Stephen defeated his father's army in the subsequent peace Béla was obliged to cede the government of the Eastern parts of his kingdom again to his son. On 23 March 1266, father and son confirmed the peace in the Convent of the Blessed Virgin on the Nyulak szigete ('Rabbits' Island').

Sources

*Kristó, Gyula: Családja eredete, Csák Máté (Magyar história). Gondolat, 1983, Budapest. *Zsoldos, Attila: Családi ügy - IV. Béla és István ifjabb király viszálya az 1260-as években ''(A Family Affair - The Conflict of Béla IV and Junior King Stephen in the 1260s)''; História - MTA Történettudományi Intézete, 2007, Budapest; . Conflicts in 1265 1265 in Europe

Isaszeg Isaszeg is a town in Pest (county), Pest county, Budapest metropolitan area, Hungary. It has a population of 10,979 (2007). Sightseeing On the top of the cemetery hill stands the old parochial church of the village. It was last rebuilt in gothic ...

Isaszeg 1265 Military history of Hungary 13th century in Hungary {{Hungary-battle-stub