A rare surviving example of a fortress church used for defensive purposes is the Church of St. Andrew in Kraków, one of the oldest and best preserved Romanesque buildings in Poland. Located at ul. Grodzka street, it was built by a medieval Polish statesman Palatine Sieciech in 1079–1098. St. Andrew was the only Romanesque church in Kraków to withstand the Mongol attack of 1241.