Bánk Bár-Kalán

Bánk of the Bár-Kalán clan (Hungarian: Bárkalán nembéli Bánk; died after 1228) was an influential nobleman in the Kingdom of Hungary in the first decades of the 13th century. He was Palatine of Hungary between 1212 and 1213, Judge royal from 1221 till 1222, and Ban of Slavonia between 1208 and 1209 and in 1217. He was also ispán of at least eight counties in the first decades of the 13th century. According to later tradition, Queen Gertrude of Merania's brother raped Bánk's wife, which caused her assassination in 1213. He is the subject of the opera Bánk bán by Ferenc Erkel.