This towering gothic building, adjoining a former Franciscan monastery (now the National Museum), is among the best preserved buildings in the city. It was built in the 15th century and badly damaged during WWII. The altar is offset by a lofty whitewashed interior and the wide expanse of floor is cobbled with tombstones, including an epitaph of the Marquis of Oria who died in Gdańsk. The marquis donated over 1,000 valuable books to the city library.