Ladislaus IV of Hungary
Ladislaus IV (1262–1290), called the Cuman for his mother's Cuman origin, inherited the throne at nine in 1272, his father Stephen V dying while rebels held him captive. Baronial factions ruled until he came of age in 1277. Allied with Rudolf I of Germany, he helped defeat Ottokar II of Bohemia at the Marchfeld in 1278.
His defence of pagan Cumans against a papal legate earned him excommunication; he routed a Cuman invasion in 1282 and survived a Mongol raid in 1285. In his last years he could no longer control the great lords and bishops, and three Cuman assassins murdered him in 1290.