Largillière (de), Nicolas – Antoine Le Prestre, comte de Puy-Vauban (1654-1731), gouverneur de Béthune Château de Versailles

The picture has something of this: people, wear, woman, Renaissance, veil, sword, portrait, saint, man, Gothic, armor, knight, cape, weapon.
Perhaps it’s a close up of a painting of a man wearing a suit of armor and holding a sword in one hand and.