Thrasyllus of Mendes, whose full name was Tiberius Claudius Thrasyllus (flourished late 1st century BCE & 1st century, died 36 CE, Greek: ??ß????? ??a?d??? T??s????? or T??s????? ?e?d?s???), was an Egyptian Greek grammarian and literary commentator from Mendes, Egypt. Although he is often mentioned in secondary sources as coming from Alexandria (Oxford Classical Dictionary), no primary source confirms this origin. It is possible that Tiberius Claudius Thrasyllus, the astrologer of Tiberius who is famously mentioned in Tacitus (Annals of Rome) and Suetonius (Lives of the Caesars) was not the same individual as Thrasyllus of Mendes.
Although Thrasyllus of Mendes was an Alexandrian grammarian and editor of Plato and Democritus, Tiberius Claudius Thrasyllus is most well known as the astrologer of the Roman Emperor Tiberius. Thrasyllus encountered the future Emperor, putative heir to the first Roman Emperor Augustus, on the Greek island of Rhodes, where Tiberius had been voluntarily exiled. Thrasyllus predicted that Tiberius would soon be recalled to Rome and officially named Augustus' successor, and remained close to him during the intervening years and the years of his reign, receiving the valuable gift of Roman citizenship for himself and his wife Aka II of Commagene, who might have been either a granddaughter or great-granddaughter of King Antiochus I Theos of Commagene, and therefore a Princess.
Tiberius daughter-in-law Livilla consulted him during her affair with Tiberius' chief minister Sejanus, and Thrasyllus persuaded Tiberius to leave Rome for Capri while clandestinely supporting Sejanus. Thrasyllus' son-in-law Naevius Sutorius Macro carried out the orders that destroyed Sejanus, whether with Thrasyllus knowledge is unclear. Thrasyllus remained on Capri with Tiberius advising him on his relationship with the various claimants to the succession, and favoring Tiberius great-nephew Caligula with whom his daughter Eunia was having a tempestuous affair. By giving a false prediction of Tiberius' longevity, the astrologer saved the lives of a number of noble Romans suspected falsely of plotting against the Emperor; believing Thrasyllus implicitly, Tiberius was confident that he would outlive any plotters, and so failed to act against them. Thrasyllus predeceased the Emperor, and did not live to see the realization of his prediction that Caligula would succeed.
Thrasyllus was the author of an astrological text titled Pinax (Table), which is lost, but has been summarized in later sources (CCAG [Catalogue of the Codices of the Greek Astrologers] 8/3: 99-101) which borrows from astrological notions found in Nechepso/Petosiris (see article on Hellenistic astrology) and Hermes Trismegistus, early pseudepigraphical sources of astrology. He is cited by Vettius Valens, Porphyry and Hephaistio.
With Aka II, Thrasyllus had two children: a son, who is usually thought to be Tiberius Claudius Balbilus, and a daughter Eunia, who married the Praetorian Prefect Naevius Sutorius Macro. Through his son, he would become the paternal grandfather of Claudia Capitolina, who would marry the Greek Prince from the Kingdom of Commagene called Gaius Julius Archelaus Antiochus Epiphanes. Through Capitolina, Thrasyllus would become great-grandfather to Prince Philopappos of Commagene and Princess Julia Balbilla of Commagene.
According to the Encyclopaedia Judaica, Thrasyllus wrote that the Exodus of the Israelites from Egypt took place in 1690 BC
He is married to Aka II van Commagene.
They got married
Child(ren):
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