Konstanty Wasyl Ostrogski

For the father of Konstanty Wasyl, see Konstanty Ostrogski.

Konstanty Wasyl Ostrogski
File:Danckers de Rij Władysław Zasławski-Ostrogski.png Portrait by Peeter Danckers de Rij
Coat of arms	Ostrogski
Spouse(s)	Zofia Tarnowska
Issue Elżbieta Ostrogska Janusz Ostrogski Katarzyna Ostrogska Konstanty Ostrogski Aleksander Ostrogski
Noble family	Ostrogski
Father	Konstanty Ostrogski
Mother	Aleksandra Słucka
Born	(1526-02-02)2 February 1526 Ostróg, Polish-Lithuanian Commonwealth
Died	23 or Ostróg, Polish-Lithuanian Commonwealth

Konstanty Wasyl Ostrogski (2 February 1526 – 13 or 23 February 1608, also known as Kostiantyn Vasyl Ostrozky, Ukrainian: Костянтин-Василь Острозький, Belarusian: Канстантын Васiль Астрожскi, Lithuanian: Konstantinas Vasilijus Ostrogiškis) was a magnate of the Polish-Lithuanian Commonwealth, a Ruthenian (Ukrainian) prince, starost of Volodymyr-Volynskyi, marshal of Volhynia and voivode of the Kiev Voivodeship. Ostrogski refused to help False Dmitriy I and supported Jan Zamoyski.

The date of birth of Konstanty Wasyl Ostrogski is disputed. According to some historians he was born around 1524/1525.

He was born probably in Turów.

In the 1570s he waged a war against another magnate, Stanisław Tarnowski, about disputed possession of estates in the area of Tarnów, in Lesser Poland.

Prince Ostrogski was of Eastern Orthodox faith and he was active in supporting the Orthodox Church (see Union of Brest). He was also a promoter of Eastern Christian culture in the Polish–Lithuanian Commonwealth. Around 1576 he established the Ostroh Academy, a regarded humanist educational and scholarship institution, with the instruction in Greek, Latin and Old Church Slavonic languages. In 1581 the Academy produced and published the Ostrog Bible, the first complete printed edition of the Bible in Old Church Slavonic.

Ostrogski's huge latifundium, or landed estate in the eastern Polish–Lithuanian Commonwealth, consisted of 100 towns and 1300 villages. It was Ostrogski who built Starokostiantyniv Castle.

While Konstanty Wasyl Ostrogski was the proponent of the Eastern Orthodox religion, his son Janusz Ostrogski converted to Roman Catholicism.

He was married in January 1553 in Tarnów.

See also

• Ostrogski family
• Starokostiantyniv Castle

External links

• Ostrozky, Kostiantyn Vasyl / Ostrozky in the Encyclopedia of Ukraine, vol. 3 (1993)
• a chapter of the "History of Russia" by Nikolay Kostomarov devoted to "Knyaz Konstantin Konstantinovich Ostrozhskiy" (Russian)