Konstanty Wasyl Ostrogski
| Konstanty Wasyl Ostrogski | |
|---|---|
| Portrait by Teofil Kopystynsky | |
| 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 | 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.