St. Mary's Cathedral is a United Protestant church in the town of Fürstenwalde upon Spree, Brandenburg, Germany.

The attack was aimed at bishop John V of Lebus [de], a strong critic of Jan Hus.

In 1517, bishop Dietrich von Bülow commissioned the sculptor Franz Maidburg [de] to build a sacrament house (Sakramentshaus), a type of freestanding tabernacle that emerged from the German Gothic architecture of the late 14th to early 15th century.

Steel-framed glass walls separate the newly created rooms underneath the organ gallery from the nave of the cathedral.

After the reconstruction of the cathedral a 1967 pipe organ by Alexander Schuke, which had originally been built for St. Thomas Church, Leipzig, was transferred to Fürstenwalde.