Diomedes of Thrace

[3][4] He is known for his man-eating horses,[5] which Heracles stole in order to complete the eighth of his Twelve Labours, slaying Diomedes in the process.

They did not like the taste of oats and grain; instead they feasted on human flesh, which their master gave them willingly.

In other translations it is said that the mares are freed to Mount Olympus where some were eaten by wild beasts.

Other versions of the story claim that Heracles was accompanied by a band of volunteers to assist in acquiring Diomedes' mares.

While Heracles and his men defeat Diomedes and his Bistone army, young Abderos is unable to control the mares and is killed in the process.

Hercules and Diomedes , from a 16th-century original at the Palazzo Vecchio in Florence, Italy; one of six marble statues representing "The Labours of Hercules" by Vincenzo de’ Rossi . [ 1 ]