Nykøbing Castle (Danish: Nykøbing Slot), now demolished, was located on today's Slotsbryggen in Nykøbing Falster, Denmark. Completed in 1594 in the Renaissance style, it replaced an earlier building from the 12th century. A royal palace, it was the traditional residence of Denmark's queen dowagers including Margrethe Sambiria (1230?–1282) and Queen Sophie (1557–1631). Christopher II died in the castle in 1332.