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Biography
Mark (I) from the kindred Csák (Hungarian: Csák nembeli (I) Márk; d. after 1259) was a Hungarian noble, who served as ispán (comes) of Hont County in 1247.
He was born into the Trencsén branch of the gens Csák as the eldest son of Matthew I and Margaret from an unidentified family. According to a royal charter in 1259, Mark owned Lednic, Upper Hungary (today: Lednica, Slovakia), where he built a castle. The name of the village was first mentioned here as "Lednyche". The charter refers to him as comes Mark de Lednyche.
Mark's descendants remained landowners near the ancient estate of the genus, Csákvár, while his brothers, Stephen I, Matthew II and Peter I, as well as the latter's sons, Matthew III and Csák acquired possessions in the north-western counties of the Kingdom of Hungary, where later Matthew III, as the most powerful oligarch, ruled de facto independently of the king and usurped royal prerogatives on his realm.