Magas of Egypt
Member of the Ptolemaic dynasty
Magas was a grandson of Magas of Cyrene, being a son of Ptolemy Euergetes and Berenice. He was put to death by his brother Ptolemy Philopator, soon after the accession of the latter, at the instigation of Sosibius. Wikipedia
Born: 241 BC
Died: 222 BC (age 19 years)
Parents: Ptolemy III Euergetes and Berenice II of Egypt
Great-grandparents: Ptolemy I Soter, Lysimachus, Berenice I of Egypt, and more