The House of Ostrogski was one of the more prominent families in the Kingdom of Poland, the Grand Duchy of Lithuania and in the Polish–Lithuanian Commonwealth. The family spanned from the 14th century
Ostrogski family coat of arms by Bartosz Paprocki
Monument to the princes in Ostroh: Konstanty Ostrogski, Feodor Ostrogski, Konstanty Wasyl Ostrogski
Princess Katarzyna Ostrogska was a Polish–Lithuanian noblewoman, founder of the city of Biała. She was the maternal grandmother of King of Poland Michał Korybut Wiśniowiecki.