Jean-Adolphe Beaucé – Arrival of the French Military Expedition in Mexico City on June 10, 1863. General Forey receives the keys of the city from the prefect Azcaraste (Entrée du corps expéditionnaire) Château de Versailles

The picture has something of this: people, group, many, cavalry, wear, man, ceremony, crowd, seated, military, veil, camel, landscape, weapon.
Perhaps it’s a painting of a large group of people standing in front of a crowd of men and women, all of whom are on horseback and on horseback.