I could not find much info about this beauty (Wiki helps, as usual).
Belonged to A. Saimonov, who had significant position in the court. His son was a friend of A.Pushkin, Russian poet, his nephew was a member of Decembrists secret society and the Decembrists' meetings were possibly held here.
Since 1976 the building is included in the list of State architectural monuments.
Pushkin in Wiki.
Decembrists in Wiki.
Posted by Irina