Marcus Antonius Polemon Pythodoros, and Polemon of Cilicia (Greek: ?????? ??t????? ????µ?? ????d????, 12 BC/11 BC 74) was a prince and Roman Client King of Pontus, Colchis and Cilicia.
Polemon was the second son and middle child of the Pontic Rulers Polemon Pythodoros and Pythodorida of Pontus. His eldest brother was Zenon, also known as Artaxias III, who was Roman Client King of Armenia, and his youngest sister was Antonia Tryphaena, who was married to Cotys VIII, King of Thrace.
The Pontic royal family was of mixed Anatolian Greek and Roman origin. His paternal grandmother is unknown, however his paternal grandmother could have been named Tryphaena, while his paternal grandfather was Zenon, a prominent orator and aristocrat, who was an ally to Roman Triumvir Mark Antony. His maternal grandparents were Pythodoros of Tralles, a wealthy Greek and friend of Pompey, and Antonia. Polemon II was the namesake of his parents and his maternal grandparents.
Through his maternal grandmother he was a direct descendant of Mark Antony and his second wife Antonia Hybrida Minor. Antony and Antonia Hybrida were first paternal cousins. He was Antonys second born great grandson and great grandchild. Polemon II is the only known male descendant of Mark Antony that carries his name. The other male descendant of Mark Antony who carries a form of his name Antonius was the consul Quintus Haterius Antoninus. Through Antony, his great maternal aunt was Queen Cleopatra Selene II of Mauretania. Through Antony, he was a distant cousin to Roman Client King Ptolemy of Mauretania and the princesses named Drusilla of Mauretania. Through Antony, he was a distant cousin to Roman Emperors Caligula, Claudius and Nero and Roman Empresses Valeria Messalina, Agrippina the Younger and Claudia Octavia.
Polemon IIs father died in 8 BC. His mother then married King Archelaus of Cappadocia, and the family had moved to Cappadocia, where Polemon II was raised, along with his siblings, at the court of his stepfather. Archelaus died in 17, whereupon Polemon II and his mother moved back to Pontus.
From 17 until 38, Polemon II lived as a private citizen in Pontus and assisted his mother in the administration of their realm. When his mother died in 38, Polemon succeeded his mother as the sole ruler of Pontus, Colchis and Cilicia.