Antoine-Jean Gros; supplemented on the sides by Auguste-Hyacinthe Debay – Battle of the Pyramids, 21 July 1798 Château de Versailles

The picture has something of this: people, group, many, man, woman, weapon, cavalry, veil, wear, battle, music, skirmish, war, soldier.
Perhaps it’s a painting of a military scene with a man on a horse in the middle of the picture and a group of men on horses in the background.