Mika Ják

Mika (I) from the kindred Ják (; died after 1202) was a Hungarian influential lord at the turn of the 12th and 13th centuries.

Family Mika (also Mike or Michael) belonged to the gens Ják, he was the first known member of the Jákmonostor branch. He was born around 1150. He had a son from his unidentified wife: Csépán I, who served as Ban of Slavonia from 1206 to 1207 and died without heirs, as his only son Stephen became a monk, giving up his secular life and family name. Mika's younger brother was Ivan (Jovan), who had two sons (Martin I and James) thus the later members of the Jákmonostor branch descended from him.

Mika founded the Pornó Abbey, dedicated to Margaret of Antioch, but the monastery itself was finished only by his son Csépán.

Career He served as Master of the treasury in 1198, when this dignity was still a non-permanent position without defined and circumscribed jurisdiction, thus the office was only stabilized during the reign of Andrew II of Hungary. Mika also held the office of ispán of Bihar County between 1198 and 1199. In 1199, he was appointed Judge royal , replacing Peter, son of Töre.

When Palatine Mog participated in Duke Andrew's conspiracy, Emeric, King of Hungary dismissed and replaced him with Mika Ják. who also served as ispán of Bács County (1199–1200), which presumably was the first ex officio ispánate of the Palatine dignity, and after that head of Bihar County (1200–1201). As historian Attila Zsoldos proves by comparing with the previous allegations, Palatine Mika was not identical with his namesake, who served as ispán of Bihar County for several times in the 1210–20s.