Hermitage Museum private mansions were nationalized and redistributed among major Soviet state museums. Particularly notable was the influx of old masters from the Catherine Palace, the Alexander Palace, the Stroganov Palace and the Yusupov Palace as well as from other palaces of Saint Petersburg and suburbs. In 1922, an important collection of 19th-century European paintings was transferred to the Hermitage from the Academy of Arts. In turn, in 1927 about 500 important paintings were transferred to the Central Museum of old Western art in Moscow at the insistence of the Soviet authorities. In the early 1930s, 70 more paintings were sent there.
Hermitage Museum Greek revival style for the display of coins, is now used for temporary exhibitions. The Gallery of the History of Ancient Painting adjoins the Knights' Hall and also flanks the skylight rooms. It was designed by Leo von Klenze in the Greek revival style as a prelude to the museum and features neoclassical marble sculptures by Antonio Canova and his followers. In the middle, the gallery opens to the main staircase of the New Hermitage, which served as the entrance to the museum before the October Revolution of 1917, but is now closed. The upper gallery of the staircase is