Konstanty Wasyl Ostrogski

Konstanty Wasyl Ostrogski
Voivode of Kyiv
Portrait by Teofil Kopystynsky
Coat of armsOstrogski
Tenure1559-1608
PredecessorHrehory Chodkiewicz
SuccessorStanisław Żółkiewski
BornWasyl Ostrogski
2 February 1526
Turov or Dubno, Grand Duchy of Lithuania
Died23 or 29 February 1608(1608-02-29) (aged 82)
Ostróg, Polish–Lithuanian Commonwealth
Noble familyOstrogski
SpouseZofia Tarnowska
IssueJanusz Ostrogski
Katarzyna Ostrogska
Konstanty Ostrogski
Aleksander Ostrogski
FatherKonstanty Ostrogski
MotherAleksandra Słucka

Prince Konstanty Wasyl Ostrogski (Ruthenian: Костεньтин Ѡстрозский,; Ukrainian: Костянтин-Василь Острозький, romanizedKostiantyn-Vasyl Ostrozkyi; Belarusian: Канстантын Васіль Астрожскi; Lithuanian: Konstantinas Vasilijus Ostrogiškis; 2 February 1526 – 23 or 29 February 1608) was a Ruthenian Orthodox magnate of the Polish–Lithuanian Commonwealth, starost of Volodymyr, marshal of Volhynia and voivode of Kiev. One of the most powerful and influential figures in Ukrainian lands during the 16–17th centuries, Ostrogski became famous as founder of the Ostroh Academy and protector of Eastern Orthodox religion.

In 2008, the council of the Ukrainian Orthodox Church of the Kyiv Patriarchate proclaimed Konstanty Wasyl Ostrogski a saint and established his feast day on 26 February [O.S. 13 February].