Portrait of Henry, 1st Viscount St. John (1652-1742) in his coronation robes Sir Godfrey Kneller (1646-1723)

The picture has something of this: people, sword, Gothic, knight, armor, wear, man, Renaissance, woman, costume, cape, cross, weapon, portrait, saint, royalty.
Perhaps it’s a painting of a man in a red and white outfit standing in a black and white checkerboard floor.