Cleopatra had a son.
Ptolemy XV Philopator Philometor Caesar ( [ Πτολεμαῖος ΙΕʹ Φιλοπάτωρ Φιλομήτωρ Καῖσαρ , links = no ] , Ptolemaios IEʹ Philopatōr Philomētōr Kaisar ; [ Ptolemaeus XV Philopator Philomētor Caesar , links = no ] June 23 , 47 BC -- August 23 , 30 BC ) , better known by the nicknames Caesarion ( [ sᵻˈzɛəriən ] English : Little Caesar ; [ Caesariō , links = no ] ) and Ptolemy Caesar ( [ ˈtɒlᵻmi_ˈsiːzər ] [ Πτολεμαῖος Καῖσαρ , links = no ] , Ptolemaios Kaisar ; [ Ptolemaeus Caesar , links = no ] ) , was the last Pharaoh of Egypt . He was the eldest son of Cleopatra VII , and possibly the only biological son of Julius Caesar , after whom he was named . 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 . 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 ) .