Napoleon and the Bavarian and Wurttemberg troops in Abensberg, 20th April 1809 Jean Baptiste Debret (1768-1848)

The picture has something of this: people, group, wear, man, weapon, cavalry, military, war, skirmish, sword, woman, soldier, veil, music, gun.
Perhaps it’s a painting of a group of men dressed in military garb standing next to each other in front.