The Feast of Virgil at Mantua, 24 Vendemiaire Antoine Charles Horace Vernet (1758-1836)

The picture has something of this: people, group, many, crowd, building, outdoors, architecture, tree, landscape, man, city, sky, military, tourist, battle.
Perhaps it’s a painting of a large group of people in a park with a tall obelisk in the background and a crowd.