Coloman of Halych was the ruler—from 1214 prince, and from 1215 or 1216 to 1221 king—of Halych, and duke of Slavonia from 1226 to his death. He was the second son of Andrew II of Hungary and Gertrude of Merania. His father and Leszek the White, Duke of Poland, concluded an agreement about the marriage of Coloman and Leszek's daughter, Salomea, and the division of Halych, allotting its western regions to Leszek, the remaining lands to Coloman. The Hungarian and Polish armies occupied the principality in late 1214. Andrew II appointed a Hungarian nobleman, Benedict the Bald, to administer it on Coloman's behalf. Coloman was crowned the first king of Halych with the pope's authorization in early 1216.

John was a prelate in the Kingdom of Hungary in the 12th and 13th centuries. He was Bishop of Csanád between 1198 and 1201, Archbishop of Kalocsa from 1202 to 1205 and Archbishop of Esztergom between 1205 and 1223. He crowned Ladislaus III of Hungary, Andrew II of Hungary and Coloman of Halych king. Andrew II appointed him to govern the kingdom during his crusade between 1217 and 1218.