Karl XI’s life horse Tott David Klöcker Ehrenstråhl (1629-1698)

The picture has something of this: cavalry, mammal, horse, seated, mare, equestrian, two, equine, stallion, mane, racehorse, mustang, livestock, pony, pasture, side view, animal, farm.
Perhaps it’s a painting of a black horse standing in a wooded area with a stone column in the foreground and a statue on the other side of the painting.