Theseus

Theseus (literally "The Gathering") was a heroic child of Poseidon (or Aegeus) and Aethra. He was famous for defeating the Minotaur and a range of other bandits.

Birth
After both of his earlier wives bore him no sons, King Aegeus of Athens seeked assistance from the Oracle of Delphi. The Oracle told him to avoid women until he returned to Athens, which puzzled Aegeus. In the nearby city Troezen, the king, Pittheus, offered Aegeus his daughter, Aethra. When Aegeus discovered Aethra was pregnant, he put a pair of sandals and his sword under an enormous boulder. The child that Aethra bore, namely Theseus, was born and raised in Troezen.