Groom leading a horse from the stable Albrecht Adam (1786-1862)

The picture has something of this: mammal, cavalry, horse, people, seated, two, equestrian, mare, stable, seat, racehorse, equine, livestock, stallion, three, animal, group.
Perhaps it’s a painting of a man leading a horse out of a stable with two dogs and a man standing next to a horse and a dog in a stable.