Portrait of Major-General Horton Briscoe (1741-1802), The Meritorious Officer Tilly Kettle (1735-1786)

The picture has something of this: people, wear, lid, man, veil, outfit, portrait, weapon, military, royalty, leader, pants, war, woman, outerwear, soldier.
Perhaps it’s a painting of a man in a red coat and black hat standing in front of.