Premise: Cleopatra VII Philopator ( Κλεοπάτρα Φιλοπάτωρ 69 -- August 12 , 30 BC ) , known to history simply as Cleopatra , was the last active ruler of Ptolemaic Egypt , briefly survived as pharaoh by her son Caesarion . Cleopatra originally ruled jointly with her father Ptolemy XII Auletes , and later with her brothers Ptolemy XIII and Ptolemy XIV , whom she married as per Egyptian custom , but eventually she became sole ruler . She later elevated Caesarion , her son with Caesar , to co-ruler in name . With Antony , she bore the twins Cleopatra Selene II and Alexander Helios , and son Ptolemy Philadelphus ( her unions with her brothers had produced no children ) .
Hypothesis: Cleopatra was unable to have children.
Label: CONTRADICTION