A place of worship can be traced on this spot as far back as 1415 when sailors built a chapel here in the name of their patron saint. A church was completed in 1437 and included sand from Jerusalem in its foundations to signify that it and the adjoining hospital were available for the use of travellers. Destroyed by fire in 1663, the rebuilt church was the first to incorporate the tower you can see today. In the 20th century it served as the base of the Craftsmans Guild until the end of the war when as with much of the city around it, it was badly damaged. In the 1950s the frescos in the nave and the stained glass windows were designed by Zofia Baudouin de Coutenay with Gdansk craftsman creating the pews, altars etc. The church is now one of the more local and interesting churches in the old town particularly during the Sunday morning children's mass.