The Nemean Lion

The horrendous lion was killed by Heracles. Hera raised the lion and set it in the region of Nemea, where it ravaged the land, devoured people, and ate the herds. The legends state that no weapon could penetrate the lion's pelt. Therefore, Heracles strangled the lion in the cave it lived in and flayed it. He then clad himself in its skin and used the head as his helmet.