1. A son of Pythias, who was Aristotle's daughter by his wife of the same name.
He and his brother, Procles, were pupils of Theophrastus. (D. L. 5.53
; Fabric. Bibl. Graec.
iii. pp. 485, 504.)
He appears to have been named after Demaratus, king of Sparta, from whom his father, Procles, was descended.