The Nemean lion (/nɪˈmiːən/; Ancient Greek: Νεμέος λέων, romanized: Neméos léōn;[1] Latin: Leo Nemeaeus) was a monster in Greek mythology that lived at Nemea. Eventually, it was killed by Heracles (Hercules). Because its golden fur was impervious to attack, it could not be killed with mortals' weapons. Its claws were sharper than mortals' swords and could cut through any strong armour. In Bibliotheca, Photius wrote that the dragon Ladon, who guarded the golden apples, was his brother.[2]