Ladislaus IV, 1262–90, king of Hungary (1272–90), son and successor of Stephen V. Ladislaus became unpopular by favoring the Cumans, from whom he was descended through his mother. During his reign, much of it while he was a minor, the magnates and lower nobility were able to establish their power constitutionally, at the expense of the monarchy. There were several revolts against the king, and he was finally slain by the once-favored Cumans. He died heirless; his successor, Andrew III (reigned 1290–1301), who issued from another branch of the Arpad dynasty, was succeeded as king of Hungary by King Wenceslaus III of Bohemia.
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