Portrait of V.I. Dahl (1801-1872) Vasily Perov (1833-1882)

The picture has something of this: people, facial hair, portrait, man, saint, mustache, Renaissance, elderly, god, cross, jacket, wear, book, museum.
Perhaps it’s a close up of a painting of a man with a long white beard and wearing a brown outfit and sitting in a chair with his arms crossed.