About Prohaeresius
Lived 276 – 368 (aged 91–92). Prohaeresius was a sophist and philosopher.
Prohaeresius (, Prohairesios; c. 276 – c. 368) was a fourth-century Armenian Christian teacher and rhetorician originally from Caesarea who taught in Athens. He was one of the leading sophists of the era along with Diophantus the Arab and Epiphanius of Syria.
Early life Prior to moving to Athens, Prohaeresius studied under the rhetor Ulpianus of Ascalon in Antioch. In Prohaeresius' student days, he was so poor that he and his friend Hephaestion, having only one decent garment between them, wore it on alternate days.
He also studied under Julianus of Cappadocia, who taught a large number of students. Among Prohaeresius' disciples was also Eunapius. One time the students of Prohaeresius got into a fight with the students of the Spartan Apsines. The matter was taken to Julianus, then an old man who pleaded to Prohaeresius to settle the matter peacefully.
No textbooks written by Prohaeresius survive today, but his influence as a teacher is described by famous sophists and rhetoricians of the second half of the fourth century such as Himerius and Libanius.
Rome Attracted by the fame of this genius of erudition, the emperor Constans invited him to his palace in Gaul and entertained him magnificently, though the guest was very simple and ascetic in habits. He was then sent by the emperor to Rome, where he became an object of popular veneration, culminating in the erection of his statue, which bore the inscription , i.e., "(from) Rome, the queen of cities, to the king of eloquence".
Prohaeresius was given a special dispensation. Julian the Apostate, a scholarly man who was made emperor against his desire in 361, greatly admired Prohaeresius, and in a letter spoke of his "exuberant and overflowing stream of speech...mighty in discourse, just like Pericles". In the hope of winning Prohaeresius to Theurgy, Julian maintained him in a professorial chair, dismissing all others; but Prohaeresius remained loyal to his faith, and voluntarily resigned his lucrative post. In the work, Raffi imagines a meeting between Prohaeresius and the Armenian historian Movses Khorenatsi, contrasting Khorenatsi's contributions to his own nation with Prohaeresius's contributions to a foreign one. The 20th-century Armenian writer Moushegh Ishkhan wrote a play with the same premise titled .
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Important facts
People in Prohaeresius's life
Named in this biography and alive at the same time
Contemporaries
People whose lives overlapped Prohaeresius's
Frequently asked questions
Who was Prohaeresius?
ancient Greek rhetorician from Caesareia of Cappadocia
When was Prohaeresius born?
Prohaeresius was born in 276 in Kayseri.
When did Prohaeresius die?
Prohaeresius died in 368.
What was Prohaeresius's occupation?
Prohaeresius was a sophist and philosopher.
What nationality was Prohaeresius?
Prohaeresius's recorded nationality: Kingdom of Armenia.
Sources & further reading
Cite this page
APA: Biography.guide. (2026). Prohaeresius. https://biography.guide/prohaeresius/
MLA: "Prohaeresius." Biography.guide, https://biography.guide/prohaeresius/.
Chicago: "Prohaeresius." Biography.guide. https://biography.guide/prohaeresius/.
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