Portrait of Angelina Magdalena (c.1666-1736), second wife of 1st Viscount St. John in coronation robes Sir Godfrey Kneller (1646-1723)

The picture has something of this: people, wear, veil, dress, woman, traditional, royalty, crown, gold, theater, portrait, costume, festival, decoration, jewelry.
Perhaps it’s a painting of a woman in a white and gold dress with a red sash around her neck.