【How-to】What does the egg in a bottle experiment prove

Caesarion, in full Ptolemy Philopator Philometor Caesar, also called Ptolemy XV Caesar, (born June 47 bce—died 30 bce), king of Egypt (reigned 44–30 bce), son of Julius Caesar and Cleopatra VII. … After Cleopatra’s arrival in Rome in 46, Caesar himself, however, officially recognized the child as his son.