(Πανδιονίδαι), a patronymic of Pandion, i. e. the sons of Pandion, who, after their father's death, returned from Megara to Athens, and expelled the Metionidae. Aegeus, the eldest among them, obtained the supremacy, Lycus the eastern coast of Attica, Nisus Megaris, and Pallas the southern coast. (Apollod. 3.15.6; Paus. 1.5.4; Strab. ix. p.392; Eustath. ad Hom. p. 285; Dionys. Perieg. 1024.)
[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