Diomedes Being Eaten by his Horses, 1865
This event is from the eighth labor of Hercules, who was ordered to capture the four flesh-eating horses belonging to King Diomedes. There are different versions of the myth; in one, Hercules kills Diomedes in battle and feeds him to his horses to calm them. In another, he feeds Diomedes to the horses out of revenge for the death of Abderus, a companion eaten by the horses.
A slightly later version, also by Moreau: Diomedes Devoured by Horses, 1866
watercolor over graphite