Berenice is the only known biological female descendant from the marriage of Arsinoe II and Lysimachus .
Through Arsinoe II , Berenice was a direct descendant of Cassander , the brother of the powerful Regent Antipater .
descendant is the only known biological female descendant from the marriage of Arsinoe II and Lysimachus .
Through Arsinoe II , Berenice was a direct descendant of Cassander , the brother of the powerful Regent Antipater .