Hermitage Museum museum acquired the collection of Cristoforo Barbarigo, including five more canvases by Titian. Today, all of the paintings but one ("Danaë") by Titian in the Hermitage Museum came to St. Petersburg from the Barbarigo collection. The New Hermitage was opened to the public on 5 February 1852. In the same year the Egyptian Collection of the Hermitage Museum emerged, and was particularly enriched by items given by the Duke of Leuchtenberg, Nicholas I's son-in-law. Meanwhile, in 1851–1860, the interiors of the Old Hermitage were redesigned by Andrei Stackensneider to accommodate the State Assembly, Cabinet of Ministers and state apartments. Stakenschneider
Hermitage Museum was completed in 1787 and has come to be known as the Large Hermitage or Old Hermitage. Catherine also gave the name of the Hermitage to her private theatre, built nearby between 1783 and 1787 by the Italian architect Giacomo Quarenghi. In London in 1787, Catherine acquired the collection of sculpture that belonged to Lyde Browne, mostly Ancient Roman marbles. Catherine used them to adorn the Catherine Palace and park in Tsarskoye Selo, but later they became the core of the Classical Antiquities collection of the Hermitage. From 1787 to 1792, Quarenghi designed and built a wing along the Winter