Chapel of Saint Mary of Altötting, Religious chapel in Břevnov, Czech Republic

The Chapel of Saint Mary of Altötting is a two-story vaulted building in Břevnov, built as a replica of the Altoetting chapel. It had four altars dedicated to St. Cajetan, St. Joseph, St. Joachim, and St. Anne, and a ground-floor crypt dedicated to Our Lady of Sorrows. The builder was J. Goetzinger from St. Florian.

Bernard Ignatius of Martinic bought the site through his mother's inheritance and asked the Prague Consistory in 1665 to build a copy of the Altötting chapel; it was finished by 1666, when his donation deed of 24 July gave it to the Theatines. Three Theatines settled there, and daily Mass from 1673 made it a pilgrimage site. The order held it until its Prague college was dissolved in 1783.

Masses were held daily in the chapel from 1673, and processions drew the high nobility. Emperor Leopold I visited on 13 August 1672, Empress Eleonora on 27 May 1680 and Bavarian elector Maximilian II Emanuel on 8 June 1683. The Theatines kept serving Masses here even after moving to their monastery in Ostruhová Street.

The chapel is currently not open to visitors as metal grilles secure all entrances and the building remains closed to the public. You can view the exterior from the surrounding area to appreciate its architecture.

Bernard Ignác of Martinic's will ordered his heart divided into three parts; one was placed in this chapel after his death in 1685, marked by a marble tombstone with a chronogram repeating the year ten times. The other two went to Slaný, to the Franciscans and the Piarists, while he himself was buried in St. Vitus Cathedral.