The major fakes were later removed from the walls, on the instructions of the bishop. Lothar Malskat played an important part in the novel "The Rat" by Günter Grass. Mary's Church was generously endowed with donations from the city council, the guilds, families, and individuals. At the end of the Middle Ages it had 38 altars and 65 benefices. The following mediaeval artefacts remain:  The impressive in the Lady Chapel (Singers' Chapel) was created in 1518. It was donated for the chapel in 1522 by Johann Bone, a merchant from Geldern. After the chapel was converted into a confessional chapel in 1790, the altarpiece was moved around the church several times. During the Second World War, it was in the Chapel of Indulgences () and thus escaped destruction. The double-winged altarpiece depicts the life of the Virgin Mary in 26 painted and carved scenes. Before 1869, the wings of the predella, which depict the legends of the Holy Kinship were removed, sawn to make panel paintings, and sold. In 1869, two such paintings from the private collection of the mayor of Lübeck were acquired for the collection in what is now St. Anne's Museum. Two more paintings from the outsides of the predella wings were acquired by the "" (Cultural foundation of Schleswig-Holstein) and have been in St. Anne's Museum since 1988. Of the remaining paintings, two are in the Staatsgalerie Stuttgart and two are in a private collection in Stockholm. In the renaissance and baroque periods, the church space contained so many memorials that it became like a hall of fame of the Lübeck gentry. Memorials in the main nave, allowed from 1693, had to be made of wood, for structural reasons, but those in the side naves could also be made of marble. Of the 84 memorials that were still extant in the 20th century, almost all of the wooden ones were destroyed by the air raid of 1942, but 17, mostly stone ones on the walls of the side naves survived, some heavily damaged. Since these were mostly baroque works, they were deliberately ignored in the first phase of reconstruction, restoration beginning in 1973. They give an impression of how richly St. Mary's church was once furnished. The oldest is that of , a mayor who died in 1594, a heraldic design with mediaeval echoes.