A building of the Russian State Library complex, this neoclassical mansion It used to be home to the Rumyantsev Museum (Moscow's first public museum) in the 19th century. It is considered to be one of the most beautiful buildings in the Russian capital. The Pashkov house was purchased by the government for Moscow University in 1839. An Institute for the Nobility (a male boarding school for children of the nobility) was located here in 1843; and later the 4th city grammar school (after 1852).The building was transferred to the Rumyantsev Museum to house its collections and library, in 1861. In 1921, since more than 400 private libraries were confiscated by the Soviets and added to the Museum, all departments were moved out of the Pashkov House. Only the Museum's library remained there, which was renamed and reorganized into the Lenin Library. The depths of the Vagankovsky hill under the Pashkov House are deemed to be one of several possible locations of the legendary library of Ivan the Terrible.