Wilhelm IV (1711-1751), Prince of Nassau-Dietz-Oranien * Herman Hendrik de Quiter (the Younger) (?-1731)

The picture has something of this: people, man, wear, portrait, woman, lid, pants, music, son, two, veil, exploration, scientist, child.
Perhaps it’s a painting of a young boy in a blue coat and red pants, holding a glove in one hand and a white glove in the other hand.