The Church of the Assumption of the Blessed Virgin Mary and St. Joseph the Betrothed in Warsaw, known as the Carmelite or Seminary Church, is located at 52/54 Krakowskie Przedmieście Street. It was built in the years 1661–1681 in the Baroque style according to the design of Isidoro Affait the Elder. The façade was rebuilt in the Classicist style in the years 1762–1780 according to the design of Efraim Szreger – it was the first Classicist stone façade in the Republic of Poland.
The church was funded by Albrycht Wessel and subsequent benefactors, including King Jan Kazimierz, Michał Czartoryski and Michał Radziejowski. Construction lasted 74 years (1642–1716). In 1705, peace talks between Poland and Sweden were held here.
A characteristic element of the church is a ball with a snake holding an apple placed on the roof in 1779. The church was not destroyed during World War II and served as the pro-cathedral of the Archdiocese of Warsaw in the years 1945–1952. In 1965, it was entered into the register of historical monuments.
Inside, there are numerous altars, epitaphs and works of art, including the icon of the Mother of God, Patroness of Good Death from 1664, the sculptural group "The Marriage of Mary" by Jan Jerzy Plersch and a figurine of the Infant Jesus.