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 imperial collections were enriched by Greek and Scythian artifacts excavated within the Russian Empire. Between 1840 and 1843, Vasily Stasov redesigned the interiors of the Southern Pavilion of the Small Hermitage. In 1838, Nicholas I commissioned the neoclassical German architect Leo von Klenze to design a building for the public museum. Space for the museum was made next to the Small Hermitage by the demolition of the Shepelev Palace and royal stables. The construction was overseen by the Russian architects Vasily Stasov and Nikolai Yefimov in 1842–1851 and incorporated Quarenghi's wing with the Raphael Loggias. In 1851, in Venice the