Konstanty Wasyl Ostrogski | |
|---|---|
 Portrait by Peeter Danckers de Rij (1640s) | |
| Coat of arms | Ostrogski |
| Born | 2 February 1526 Ostróg, Polish–Lithuanian Commonwealth |
| Died | 23 or 13 February 1608 (aged 82) Ostróg, Polish–Lithuanian Commonwealth |
| Noble family | Ostrogski |
| Spouse(s) | Zofia Tarnowska |
| Issue | Elżbieta Ostrogska Janusz Ostrogski Katarzyna Ostrogska Konstanty Ostrogski Aleksander Ostrogski |
| Father | Konstanty Ostrogski |
| Mother | Aleksandra Słucka |
Kostiantyn Ostrozkyi | |
|---|---|
 | |
| Right-Believing Prince | |
| Venerated in | Orthodox Church of Ukraine |
| Canonized | 12 July 2008 |
| Feast | 26 February |
Konstanty Wasyl Ostrogski (Ukrainian: Костянтин-Василь Острозький, romanized: Kostiantyn-Vasyl Ostrozkyi; Belarusian: Канстантын Васіль Астрожскi; Lithuanian: Konstantinas Vasilijus Ostrogiškis; 2 February 1526 – 13 or 23 February 1608) was a Ruthenian Orthodox magnate of the Polish–Lithuanian Commonwealth, a prince, starost of Volodymyr, marshal of Volhynia and voivode of the Kiev Voivodeship. Ostrogski refused to help False Dmitriy I and supported Jan Zamoyski.