George John Spencer, Viscount Althorp (1758-1834) while a student at Trinity College, Cambridge John Downman (1750-1824)

The picture has something of this: people, portrait, woman, indoors, antique, child, saint, vertical, window, baby, mirror, retro.
Perhaps it’s a portrait of a man in a black dress with a white collar and a white ruffle on his neck and a gold frame around his neck.