Garden at Sainte-Adresse Claude Oscar Monet (1840-1926)

The picture has something of this: flag, water, people, architecture, outdoors, house, military, sky, wind, administration, building, watercraft, landscape, castle, home, many, chair, vehicle.
Perhaps it’s a painting of a man and a woman in a garden next to a body of water with a sailboat in the distance and flowers in the foreground.