Portrait of the wife of an unknown person with a chamberlain key Heinrich Gottlieb Hauser (1720-1751)

The picture has something of this: people, portrait, woman, seat, furniture, wear, sit, royalty, dress, jewelry, veil, queen, necklace, antique, easy chair, chair.
Perhaps it’s a painting of a woman in a blue dress sitting in a chair with her hand on her lap and her right hand resting on the arm of the chair.