Ptolemy XV Philopator Philometor Caesar, nicknamed Caesarion (little Caesar) Greek: Πτολεμαίος ΙΕ' Φιλοπάτωρ Φιλομήτωρ Καίσαρ, Καισαρίων (June 23, 47 BC – August, 30 BC) was the last king of the Ptolemaic dynasty of Egypt, who reigned, as a child, jointly with his mother, Cleopatra VII of Egypt from September 2, 44 BC to August, 30 BC, when he was killed by Octavian, who would become the Roman emperor Augustus.
He was the eldest son of Cleopatra VII. He is considered, and it is highly likely, given the evidence, the son of Julius Caesar, for whom he was named. If so, he was Caesar's only known son by blood.

Life

In the 1963 film Cleopatra we see the body of Caesarion - apparently about ten years old - just after he has been assassinated - a shocking and heartbreaking sight.
In the Asterix comic book Asterix and Son, at the end of the book Caesarion is revealed as being the baby boy that Asterix had found on his doorstep and had been looking after. (The original French title of the graphic novel is Asyerix et Fils.)
The 2005-07 BBC/HBO television historical fiction miniseries Rome features a version of Caesarion as a minor character. The series invents a subplot in which Caesarion is eventually revealed to actually be Cleopatra's son with a lowly Roman soldier, Titus Pullo, who saves the boy from execution by telling Octavian that he murdered Caesarion. The final episode ends with Titus Pullo saying, "About your father...", presumably before telling Caesarion about his true identity. The boy in the TV series looks considerably younger than seventeen, the age of the historical Caesarion at the time of his death. The actors who play the part are Nicolo Brecci (younger) and Max Baldry (older).