Prince Janusz Ostrogski was a Polish-Lithuanian noble and statesman. He served as a voivode of Volhyn (1584-1593), as a castellan of Kraków, and as a starosta of Bohuslav, Biała Cerkiew, Czerkasy and Kaniów, Perejasław and Włodzimierz.
Ostrogski's coat of arms
Volhynian Voivodeship (1569–1795)
Volhynian Voivodeship was a unit of administrative division and local government in the Grand Duchy of Lithuania from 1566 until 1569 and of the Polish Crown within the Polish–Lithuanian Commonwealth from the 1569 Union of Lublin until the Third Partition of Poland in 1795. It was part of the Ruthenian lands in the Lesser Poland Province.
Haute Volhynie (Upper Volhynia) or Luck Palatinate in 1665, Luck identified as Lusuc