Jean-Baptiste de Nompere de Champagny (1756-1834) Duke of Cadore Antoine Ansiaux (1764-1840)

The picture has something of this: people, furniture, man, wear, leader, two, portrait, seat, woman, group, music, veil, elderly.
Perhaps it’s a painting of a man standing in front of a desk with a sheet of paper in his hand and a book in his other hand.