Theseus was a mythical hero from Greek mythology who is best known for slaying the Minotaur, a creature with the head of a bull and the body of a man. He was the son of Poseidon, the god of the sea, and Aethra, a mortal woman. Theseus was a brave and cunning warrior who was able to defeat the Minotaur with the help of Ariadne, the daughter of King Minos. He is remembered as a symbol of courage and strength.