Cleopatra: A Life

* Caligula descended from both Mark Antony (his paternal great-grandfather) and Octavian (his maternal great-grandfather). He posed alternately as a descendant of each, depending on his agenda. It was easy to trip up under his reign, when sacrifices to celebrate Antony’s overthrow might be objectionable one day, the reluctance to offer sacrifices to Augustus’s victory the next.