Mariinskyi Palace
In the early 19th century the palace burned down in a series of fires. Some half a century later, in 1870, Alexander II of Russia had the palace reconstructed by the architect Konstantin Mayevsky, using old drawings and watercolours as a guide. It was then renamed after the reigning Empress Maria Alexandrovna. Per her wishes, a large park was established off the southern side of the palace. The palace was used as a residence for visiting members of the imperial family until 1917.
During the years of the Russian Civil War in 1917-20, the palace was used as a military headquarters. In the 1920s the building belonged to an agricultural school, soon after which it became a museum. The Mariinskyi Palace was badly damaged in World War II, and restored at the end of the 1940s. Another major restoration was completed in the early 1980s.
From Wikipedia