Wikipedia
Mizse
Mizse was the last Palatine of King Ladislaus IV of Hungary in 1290. He was born in a Muslim family in Tolna County in the Kingdom of Hungary, but he converted to Roman Catholicism. The king appointed Mizse Palatine at the end of his rule. When King Ladislaus IV was murdered by a group of Cumans, Mizse led the revenge attack against his murderers and had them executed.
He was the ispán (head) of Tolna and Bodrog Counties in 1291. Mizse assisted King Ladislaus IV's successor, King Andrew III of Hungary in his campaign against Austria. However, when he occupied by force the fortress at Dunaszekcső, the king's mother Tomasina Morosini besieged and took the fort from him. This is the last piece of information on Mizse.