Demachy, Pierre Antoine – Gezicht op de Engelenburcht te Rome, 1750 - 1800 Rijksmuseum: part 1

The picture has something of this: river, architecture, castle, bridge, water, building, city, tree, landscape, tower, sky, ancient, landmark, Gothic, fortress, lake, outdoors.
Perhaps it’s a painting of a river with a bridge in the background and people in a rowboat in the foreground, and a castle.