The correct answer is King Minos of Crete.
King Minos angered the god Poseidon and so he wanted to have his revenge on him - therefore, he made Minos' wife Pasiphae fall in love with a white bull and mate with him, and as a result of that, Minotaur was born. Minos was embarrassed, and so he hired Daedalus and his son Icarus to make him a labyrinth where he could keep the monster until someone was strong enough to kill him. That someone was Theseus.