Исаакиевский собор
The palace stands on the south side of Saint Isaac's Square, just across the Blue Bridge from Saint Isaac's Cathedral. The site had been previously owned by Zakhar Chernyshev, and contained his home designed by Jean-Baptiste Vallin, which was built between 1762 and 1768. Chernyshev occasionally lent his home to foreign dignitaries visiting the capital, such as Louis Henri, Prince of Condé.