Founded in the 1360s, built a long time - up to 1481, in typical European Gothic style. In the walls - high windows, covered with stained glass. Parts: Kampianiv Chapel (Каплиця Кампіанів)- built near the northern wall of the Latin Cathedral in 1619 - and the Boimiv Chapel (Каплиця Боїмів) which built as a tomb in 1610s for the merchant Boim family. A mannerist architecture marvel all made of black stone.