Caesarion

Caesarion was the son of Julius Caesar and Cleopatra.

History
Ceasarion was born to Roman Dictator Julius Caesar and Pharaoh Cleopatra VII. His mother hoped that be united the blood lines of Rome and Egypt, her son could rule both. However his father ignored him and selected his great nephews and adoptive son, Ceasarion’s first cousin-once-removed, Octavion.

His mother committed suicide when he was seventeen, a week and a half later Octavian found and killed him.

Brooklyn House Magician's Manual
Carter Kane sees Ceasarion’s life in the Hall of Ages.

Trivia

 * Caesarion is the first Legacy to appear in The Kane Chronicles, albeit his divine heritage is from a different pantheon.