It is the largest and most mysterious palace of the palaces of Kolostor Street.
It is named after the aristocratic families who owned the building until 1945, the Zichy and Meskó families. It is an outstanding monument of Baroque architecture and painting. The wrought-iron gate leading to the staircase, the Baroque stone sculptures of the staircase, and the frescoes in the upstairs rooms are of special value. Recent research suggests that it was of great significance already in the Middle Ages. This medieval building was donated to Sopron by the Hungarian King Sigismund I of Luxembourg in 1422 to house the town hall. To the right of the palace there is another house of medieval origin (Kolostor utca 13.), one of the oldest buildings in the town centre, with the remains of a 13th century residential tower in the courtyard.