Jezuitský profesní dům, Baroque monastery in Malá Strana, Czech Republic

The Jezuitský profesní dům is a three-winged early Baroque building on Malostranské náměstí, built by Giovanni Domenico Orsi and, after his death, Francesco Lurago between 1674 and 1691. Its facades lack the tall pilaster order of Prague's Jesuit colleges; only the northwest corner, where the former church of St Wenceslas and the library were, has pilasters across two floors. A late Baroque portal stands on the east side.

The Jesuits acquired St Nicholas Church with its parish and school in 1625, and ten clerics moved in the following year. The professional house was built from 1674 to 1691 by Giovanni Domenico Orsi, then Francesco Lurago after Orsi's death, amid disputes with city councillors over its ground plan and the church towers used to announce fires. After the order's suppression in 1773 the house served administrative purposes.

The refectory, a hall with a barrel vault, retains late-Baroque wall and ceiling paintings. The building also housed a library on the upper floor of the northwest wing. The student seminary was titled Holy Guardian Angels.

The building currently houses the Faculty of Mathematics and Physics at Charles University, with conference areas and teaching spaces. Keep in mind that this is an active academic institution, so not all areas may be open to visitors.

The Romanesque rotunda of St. Wenceslas, damaged during foundation work for the Profesní dům, was turned into a crypt; its entrance was later walled up. The Gothic church of St. Wenceslas that stood beside it was demolished.