Saint Isaac's Cathedral
During the time he was a Professor, he created numerous portraits (including those of Mikhail Kutuzov and Hans Karl von Diebitsch) and allegorical scenes for the restoration of the Winter Palace, after the disastrous fire in 1837, but his religious works are the most familiar. They include forty paintings and icons for Saint Isaac's Cathedral, many created from sketches by Karl Bryullov, including a "Sermon on the Mount".