The Ptolemy to which Bel Affris refers is Ptolemy XIII, Cleopatra’s younger brother. Following the death of their father, Ptolemy XII Auletes, in 51 B.C.E., Cleopatra and her brother took the throne as co-rulers of Egypt but had a fallout that resulted in Pompey exiling Cleopatra to Roman Syria in 48 B.C.E. She returned later that year, backed by an army, to confront Ptolemy and regain control of Egypt, so we can assume that her return to Egypt will occur sometime soon in the play. Caesar’s Roman army’s inclination to spare Bel Affris and his captain their lives suggests something about Caesar’s character, or at least his characteristics as a leader. He seems to have a practical stance on violence and killing. He could have killed Bel Affris and his captain because they are their enemies, but he chose not to because they were outnumbered and didn’t pose a danger to his army.