Ladyurner Adolf Ignatevich – Types of rooms of the Winter Palace. Part of White Hall Hermitage ~ part 06

The picture has something of this: people, castle, group, wear, museum, room, ceremony, wedding, woman, man, royalty, bedrock, city, many, leader, dress, gold.
Perhaps it’s a painting of a group of people standing next to each other in front of a statue of a man in a suit and a woman in a dress.