Dujardin, Karel – De regenten van het Spinhuis en Nieuwe Werkhuis te Amsterdam, 1669, 1669 Rijksmuseum: part 4

The picture has something of this: people, group, wear, education, man, outfit, woman, room, three, lid, indoors, leader, furniture, five, veil, portrait, school, employee, cooperation.
Perhaps it’s a painting of a group of people sitting at a table in front of.