Gaius Julius Alexion (Greek: Γάϊος Ἰούλιος Άλεξίων, after 56 - 78) was a Syrian Prince and Roman Client Priest King of Emesa.
Alexion's late paternal uncle was the childless Emesene King Gaius Julius Azizus who was the first husband of the Herodian Princess Drusilla, while he had two paternal aunts, Iotapa who married the Herodian Prince Aristobulus Minor and Mamaea.
Drusilla was the child of the late Roman Client Monarchs Ptolemy of Mauretania and Julia Urania.
The mother of Drusilla may have been a member of the Royal family of Emesa[2] and her father was a maternal grandson of the Ptolemaic Greek Queen Cleopatra VII of Egypt and Roman Triumvir Mark Antony.
[6] There was a noted sepulchral Greek inscription on the mausoleum of Emesa dated 78/79[7][8] at Emesa, dedicated by Gaius Julius Sampsigeramus Seilas, who may have been related to the Sampsigeramid dynasty:[9] ΓΑΙΟϹΙΟΥΛΙΟϹΦΑΒΙΑϹΑΜϹΙΓΕΡΑΜΟϹΟΚΑΙϹΕΙΛΑϹΓΑΙΟΥΙΟΥΛΙΟΥΑΛΕΞΙΩΝΟϹΥΙΟϹΖΩΝΕΠΟΙΗϹΕΝΑΥΤΩΚΑΙΤΟΙϹΙΛ ΟΙϹΕΤΟΥϹϞΤ[10]Γάϊος Ἰούλιος, Φαβίᾳ, Σαμσιγέραμος ὁ καὶ Σεί[λ]ας, Γαΐου Ἰουλίου Ἀλεξίωνος υἱός, ζῶν ἐποίησεν [ἑ]αυτῷ καὶ τοῖς ἰ[δί]οις, ἔτους ϟτʹ[11]After the death of Alexion, the generations after him are not recorded sufficiently to accurately present a pedigree.