Backer, Jacob Adriaensz. – De regenten van het Nieuwe Zijds Huiszittenhuis te Amsterdam, ca 1650., 1645-1651 Rijksmuseum: part 4

The picture has something of this: people, group, education, ceremony, lid, dinner jacket, outfit, portrait, man, gown, wear, graduation, school, accomplishment, leader, cap, woman, group together, several.
Perhaps it’s a group of men sitting next to each other in front of a painting of a man wearing a top hat and holding a piece of paper in his hand.