Proto-Indo-European mythology also in the myths of the slaying of the nine-headed Lernaean Hydra by Heracles and the slaying of Python by Apollo. The story of Heracles's theft of the cattle of Geryon is probably also related. Although Heracles is not usually thought of as a storm deity in the conventional sense, he bears many attributes held by other Indo-European storm deities, including physical strength and a knack for violence and gluttony. The original Proto-Indo-European myth is also reflected in Germanic mythology. In Norse mythology, Thor, the god of thunder, slays the giant serpent Jörmungandr, which lived in the waters surrounding the
Megara (mythology) she was given to Iolaus when Heracles left Thebes forever. She was mother of Leipephilene by Iolaus. In some traditions, in order to atone his guilt, he was forced to perform the Twelve Labours, but in Euripides' tragedy, Heracles' return from his encounter with Cerberus in Hades begins the "agon". Megara (mythology) In Greek mythology, Megara (; Ancient Greek: Μεγάρα) was the oldest daughter of Creon, king of Thebes and possibly, Eurydice. She was the sister of Menoeceus (Megareus), Lycomedes, Haemon, and Pyrrha. In reward for Heracles' defending Thebes from the Minyans at Orchomenus single-handed, Creon offered his daughter Megara