Pastorello in piedi. (1735). Rovigno, Museo del Seminario. Pietro Longhi (1701-1785)

The picture has something of this: people, woman, portrait, wear, Renaissance, mammal, veil, cape, man, baroque, bonnet, side view, necklace.
Perhaps it’s a painting of a boy with a cane and a cane in his hand and a hat on his head.