Ugrin Csák

Ugrin (III) from the kindred Csák (Hungarian: Csák nembeli (III.) Ugrin, Croatian: Ugrin Čak, Serbian: Угрин Чак; died in 1311) was a prominent Hungarian baron and oligarch in the early 14th century. He was born into an ancient Hungarian clan. He actively participated in the various internal conflicts during the era of feudal anarchy since the reign of Ladislaus IV of Hungary. He held various dignities in the royal court in the 1270s. Simultaneously, he established a province surrounding his centre Syrmia in the southern parts of the kingdom.

Initially, he supported the efforts of Andrew III of Hungary, but later turned against him, and became the guardian and the most ardent domestic partisan of the young pretender Charles. After the extinction of the Árpád dynasty in 1301, he was among the so-called oligarchs or provincial lords, who ruled de facto independently their dominions. Charles I fought for the Hungarian throne during the civil war relying on his hinterland in Ugrin Csák's province. The elderly lord died in 1311, his dominion was soon integrated into the royal administration.