Possibly derived from Greek
τιθημι (tithemi) meaning "to set, to place". Theseus was a heroic king of Athens in Greek mythology. He was the son of Aethra, either by Aegeus or by the god
Poseidon. According to legend, every seven years the Cretan king
Minos demanded that Athens supply Crete with seven boys and seven girls to be devoured by the Minotaur, a half-bull creature that was the son of Minos's wife Pasiphaë. Theseus volunteered to go in place of one of these youths in order to slay the Minotaur in the Labyrinth where it lived. He succeeded with the help of Minos's daughter
Ariadne, who provided him with a sword and a roll of string so he could find his way out of the maze.
There were no related names found for Theseus.