Johanna Charlotta (1682-1750), Princess of Anhalt-Dessau Fredric Westin (1782-1862)

The picture has something of this: woman, people, Renaissance, nude, portrait, veil, cape, baroque, wear, dress, monarch, aura, saint.
Perhaps it’s a painting of a woman in a gold dress sitting in a chair with a red sash around her neck and a white headband.