(Δημολέων). There are four mythical beings of this name, a centaur (Ov. Met. 12.355, &c.), a son of Phrixus and Chalciope (Hyg. Fab. 14), a son of Antenor and Theano, who was slain by Achilles (Hom. Il. 20.394), and a son of Hippasus, who was slain by Paris. (Quint. Smyrn. 10.119, &c.)
[L.S]A Dictionary of Greek and Roman biography and mythology
Smith, William
A Dictionary of Greek and Roman biography and mythology. William Smith, LLD, ed. 1890