Civita Castelland Buildings High in the Rocks aka La Porta San Salvatore Jean-Baptiste-Camille Corot (1796-1875)

The picture has something of this: landscape, castle, fortification, hill, fortress, architecture, scenic, water, mountain, outdoors, river, rock, tree, tower, ancient, daylight, sky, grass.
Perhaps it’s a painting of a castle sitting on top of a hill next to a body of water with a boat in the water and people standing on the side of the cliff.