This framed door once gave access to the meeting room of the guild of fishmongers in Brussels. When the baroque guild house, located on the banks of the Senne, was demolished in 1872, the door was saved and transferred to the museum a few years later.
The oak door is decorated in two registers: at the top we see the Virgin Mary with the baby Jesus, and at the bottom the apostle Peter. The frame, executed in stone and stucco, is decorated in high relief with several fish. The architrave above the door is flanked by two lions bearing the coat of arms of the Spanish king and duke of Brabant, Philip IV.