Fourth Ecumenical Council of Chalcedon. 1876 Vasily Ivanovich Surikov (1848-1916)

The picture has something of this: people, saint, group, Mary, book, Renaissance, church, god, woman, cross, baroque, veil, aura, Apostle, man.
Perhaps it’s a painting of a group of people in a room with a dog on the floor and a man sitting on a chair in the middle of the room.