Cathedral lies in the 60's pp. XIV century. His first master builder was prone Lviv, supervision of works carried Shteher Peter. Like other buildings of that time, the cathedral was built a long time - up to 1481 in 1404 Wroclaw master Nikolai Hanseke blocked arches of the altar, it also ended in Wrocław architects and Ambrose Joachim Thunder Rabish. This church strict and simple Gothic forms, and both monumental and stately, they are no decorative ornaments, typical of European Gothic. The characteristic decoration of the house serves a number of buttresses. In the walls - high ogive windows, covered with stained glass. This part of the altar remained almost unchanged until today. The basic weight of the house was subjected to radical changes in later times.