Иштван V
Andrew, Duke of Slavonia (; 1268–1278) was the youngest son of King Stephen V of Hungary and his wife, Elizabeth the Cuman. Two rebellious lords kidnapped him in 1274 in an attempt to play him off against his brother, Ladislaus IV of Hungary, but the king's supporters liberated him. He was styled "Duke of Slavonia and Croatia" in a 1274 letter. Years after his death (in 1290 and in 1317), two adventurers claimed to be identical with Andrew, but both failed.