Danylo Ostrozky

Danylo Ostrozky was a Ruthenian knyaz, probably prince of Turaŭ, who became the first prince of Ostroh and founder of the Ostrozky house. In 1344 he called in Tatars to fight for Galicia during the Galicia–Volhynia Wars.

Later he joined Liubartas of Galicia–Volhynia, received Ostroh and rebuilt its ruined castle. He was prince of Kholm in 1352–1366, signed the Liubartas–Polish boundary charter in 1366 and died before 1376.