The late Baroque door of the Benedictine Monastery next to the Goat Church leads to the Chapter House. This room is one of the most beautiful works of early Gothic religious architecture. It first served as a prayer house, later as a burial chapel, and finally as a Loretto chapel. Archeological excavations unveiled Gothic pillars, beautifully crafted corbels, and parts of medieval frescoes. The 13th century building was reconstructed during the 14th-15th centuries and the frescoes date from that period. The masks and the figures with human-heads and animal bodies hidden in the leaf ornaments of the pillars' capitals represent the seven main sins.
Besides the architectural values of the hall, relics of medieval stone statuary of the Sopron museum are displayed here. Among the ornaments, the heraldic animal (a goat) of the chief benefactor family (the Gaissels) can also be seen on their armour.