Korets
Korets stands on the Korchyk in eastern Volhynia. Known as Korchesk in 1150, it was fortified by Prince Fedir Ostrogski in the late fourteenth century. Its castle became the seat of the Korecki princes and, after their line ended in 1651, passed to the Czartoryski family. In 1783 Józef Klemens Czartoryski founded a porcelain manufactory managed by the French de Mézer brothers. Its wares became known across Poland; after a fire in 1797 the works were rebuilt.