Cornelis Troost – Jan Claasz or the Supposed Servant Girl: Reinier Adriaansz’s Declaration of Love Mauritshuis

The picture has something of this: people, woman, dress, two, ballet dancer, ballet, veil, costume, dancing, ballerina, wear, three, dancer, wedding, portrait, group, man, princess.
Perhaps it’s a painting of a man and a woman standing next to each other in front of a doorway with a dog on the other side of the door.