Mariamne (born 34) was a daughter of King Herod Agrippa I. She was betrothed by her father to Julius Archelaus, son of Chelcias (maybe Hilkiya in hebrew who was a friend and an officer at the court), but this marriage had not yet been enacted upon her father's death. Her brother Agrippa II enacted the marriage once he had been made tetrarch in around 49/50. From this marriage was derived a daughter, whose name was Berenice. She later left her husband and married Demetrius of Alexandria who was its Alabarch and had a son from him named Agrippinus.