After the reconstruction of the city Retz was conquered by Matthias Corvinus on October 10, 1486, after a six-day siege. Until 1492 Retz belonged to his dominion. During that time the city received the privileges concerning the trade of wine which were responsible for its future wealth. Also as a consequence of these privileges the huge and multi-storied wine cellar system was built. Today it is used for guided tours and serves as the location for a Christmas market during Advent.