Piarist Church, Vienna
The Piarist Church, also known as the Church of Maria Treu, is a Baroque parish church of the Order of the Piarists in Vienna, Austria. It is located in Vienna's 8th district. The Piaristenkirche was elevated to the rank of Basilica Minor in 1949.Interior
The church has eight chapels and is decorated with frescoes made by Franz Anton Maulbertsch in 1752–53.Trivia
Commissioned by the Piarists, Haydn’s Missa in Tempore Belli was first performed on 26 December 1796.