St. Michael's was designed as the burial site for the House of Wittelsbach and therefore has a princely crypt, which is one of the most important burial sites of the Bavarian ruling house, along with the Theatinerkirche and the cathedral. The most famous ruler resting here is King Louis II of Bavaria (25 August 1845 – 13 June 1886). The princely crypt is cared for by the Wittelsbach Compensation Fund. The entrance inside the church is located on the right of the nave, near the choir.
Currently the crypt is only open on Thursday, Friday and Saturday, and will remain closed from Monday to Wednesday.
St. Michael's is the first and largest Renaissance building north of the Alps. For more than two centuries the magnificent church influenced church building in southern Germany. The streets and alleys of Munich were narrow, as in all medieval cities. There was not enough space for admiring grand façades. St. Michael's was the first church in the city that was given such a monumental front wall, a façade (Italian: faccia, face). The new building was not oriented to the east like older churches, although the first plans still had envisaged this traditional alignment. Instead, the church was to be fitted into existing architectural structures of the city.