The great Greek hero Heracles was the son of Zeus and the mortal woman Alkmena, daughter of King Mycenae. From the birth of Heracles was pursued by Zeus' wife, goddess Hera, who was angry that her husband had entered into a relationship with Alkmena. In day before a birth Heracles Zeus has declared, that the baby which will appear first in these days in a sort of descendants of Perseus, will dominate over all relatives. Hera, having learned about it, hastened the birth of the wife of Perseid Sfenel, who gave birth to a weak and cowardly Eurystheus. Zeus had to agree that Hercules, born after that, would submit to Eurystheus, but not for the rest of his life, but only until he performed 6 great deeds in his service.ercules kills the German lion. Copy of the statue of Lisippe The first feat of Hercules (summary) Heracles strangled a huge German lion, who was born of the monsters Tiffon and Ehidna and made devastation in Argolid. Heracles' arrows bounced off the lion's thick skin, but th