The construction of a brick temple, founded by Duke Henry V the Fat and the Legnica townspeople, began in 1294.

Starting from 1566 it served as a Calvinist church, due to the last Silesian Piasts accepting this confession.

In 1677–1679, the church's presbytery was converted into a family mausoleum by Duchess Louise of Anhalt-Dessau, the mother of the last Silesian Piast, George William.

It was severely damaged in 1744, when the roof structure and the nave vault collapsed as a result of errors during construction works.

[2] In 1947[1] it was handed over, together with the adjacent monastery, to the Franciscan Order, which repaired the World War II damage.

Since the 16th century it served as the necropolis of the Piasts, and in the years 1677-1679 was rebuilt, thanks to Louise of Anhalt, into a mausoleum of the last dukes of Legnica-Brzeg.