In 1731, the First Cadet Corps were established and occupied the palace and neighboring buildings. At the end of the 19th century the Menshikov Palace was restored and became the museum of the Corps. From June to July 1917, the First All-Russian Congress of Soviets of Workers' and Soldiers' Deputies was held in the building. In 1924, its collections were moved to the Hermitage and other museums. From 1956 to 1981, the Menshikov Palace was restored again and finally opened to the public as a branch of the Hermitage Museum with a collection of Russian art of the late 17th-early 18th century.
^It is not to be confused with the Menshikov Palace in Oranienbaum, Russia, built by the same architects around the same time. Menshikov Palace can also refer to the Lefort Palace in Moscow.
Sources
Калязина Н. В. Меншиковский дворец-музей. 2nd ed. Leningrad: Lenizdat, 1989. ISBN5-289-00467-X.