Original: Ptolemy XV Philopator Philometor Caesar ( June 23 , 47 BC -- August 23 , 30 BC ) , nicknamed Caesarion ( little Caesar ) Greek : , , Ptolema os Philopát r Philom t r Ka sar , Kaisarí n 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 .
Simplified: Ptolemy XV Philopator Philometor Caesar , nicknamed Caesarion ( little Caesar ) Greek : , ( June 23 , 47 BC -- August , 30 BC ) was the son of Cleopatra VII .