Herod Philip I in Fausset's Bible Dictionary

3. HEROD PHILIP I. Son of Herod the Great and Mariamne, the high priest. Simon's daughter. Distinct from the tetrarch Herod Philip II. He married Herodias, sister of Agrippa I, by whom he had Salome, the daughter who by dancing pleased Herod ANTIPAS (see above), the paramour of her own mother and dishonourer of her father! Owing to his own mother Mariamne's treachery, Herod Philip I was excluded from all share in his father's dominions, and lived privately. His being without a kingdom was doubtless a cause of the ambitious Herodias deserting him for his brother the tetrarch. But "vaulting ambition o'erleaps itself and falls on the other side"; and seeking the name of "king" besides the reality which her paramour had, she and he ended their days in shame and exile.