Background
Son of Prince Władysław Dominik Zasławski and Katarzyna Sobieska, daughter of magnate Voivode of Bełz and Ruthenia Jakub Sobieski h.
Son of Prince Władysław Dominik Zasławski and Katarzyna Sobieska, daughter of magnate Voivode of Bełz and Ruthenia Jakub Sobieski h.
The 4th ordynat of the Ostrogski Family Fee Tail. Janina, the sister of King of Poland January III Sobieski. In 1669, he aspired to become Polish King by election but, in the event, the throne went to Michał Korybut Wiśniowiecki.
In 1670, Prince Zasławski founded a Jurydyka in Warsaw on Magdeburg rights, which was named Alexandria in his honour.
In this place was built Palace by Janusz Ostrogski.
