Mostyska (Ukrainian: Мостиська, Polish: Mościska) is a city in Lviv Oblast (region) of Ukraine. It is administrative center of the Mostyska Raion. Population: 9,193 (2013 est.). In 1340, Mostyska, together with Red Ruthenia, was annexed by Polish King Kazimierz Wielki, and the town remained in Poland for over 400 years, until 1772 (see Partitions of Poland). Mosciska, as it was called, belonged to the Przemysl Land, Ruthenian Voivodeship. In 1404, King Wladyslaw Jagiello granted it the Magdeburg rights town charter. Mosciska was the seat of a starosta, and the town was several times destroyed during the Tatar, Turk and Wallachian raids. In the late 18th century, when it already was part of Austrian Galicia, the population of Mosciska was 2,200, with a large Jewish minority. In the Second P