Cleopatra's daughter by Antony (Cleopatra Selene) was married in 25 to Juba II.
The newly born son of Philip by Cleopatra, and Alexander's cousin Amyntas, were put to death, and Alexander took up the interrupted work of his father.
He killed Berenice and, dying in 51, bequeathed the kingdom to his eldest son, aged ten years, who was to take as wife his sister Cleopatra, aged seventeen.
Queen Cleopatra' made use of a large number of sistra at the battle of Actium (31 B.C.), and accordingly the instrument was satirically called Queen Cleopatra's war trumpet.