The Church of Saints Peter and Paul in the Old Town district of Kraków, Poland (Polish: Kościół ŚŚ Piotra i Pawła w Krakowie) is a Roman Catholic, Polish Baroque church located at ul. Grodzka 54 street. It was built between 1597–1619 by Giovanni Maria Bernardoni who perfected the original design of Józef Britius. It is the biggest of the historic Churches of Kraków in terms of seating capacity. Since 1842 it serves the Catholic All Saints parish. The Church regulary hosts classical music concerts.