Farewell of Napoleon I (1769-1821) and Alexander I (1777-1825) after the Peace of Tilsit 9th July 1807 Gioacchino Giuseppe Serangeli (1768-1852)

The picture has something of this: people, group, woman, wear, man, child, music, many, dancing, recreation, group together, weapon, veil, performance.
Perhaps it’s a painting of a man standing in front of a group of people with a boat in the foreground and a crowd of people in the background.