Stephen V of Hungary

Stephen V (1239–1272) was the eldest son of Béla IV, married to Elizabeth, daughter of a Cuman chieftain. He governed Transylvania from 1257 and Styria from 1258.

Styrian nobles rebelled with Ottokar II's support, and Ottokar routed Stephen and his father at Kressenbrunn in 1260. He forced Béla to cede lands east of the Danube as junior king in 1262 and fought him until peace in 1266.

Stephen succeeded to the throne in 1270 and repelled Ottokar's invasion of Hungary in 1271. After his son Ladislaus was seized by rebels, he died on 6 August 1272.