BERENICE, daughter of Ptolemy Auletes king of Egypt, and eldest sister of the famous Cleopatra, ascended the throne on the deposition of her father by the Alexandrians, B.C. 58. Berenice, in order to support her authority, married Seleucus the brother of Antiochus XIII. king of Syria; but soon growing weary of her choice, she caused Seleucus to be put to death. She then married Archelaus, whom Pompey had made king of Comana in Pontus; but a few months afterwards Ptolemy was reinstated by the Romans, and Berenice and Archelaus were slain, B.C. 55. (Liv. Epit. 109; Dion Cass. xxxix. 55-58.)