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Valentinus

d. 644

Byzantine general and usurper

Regent
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About Valentinus

Valentinus was a Byzantine regent.

Biography

According to Sebeos, Valentinus was of Armenian origin, being descended from the royal Arsacid clan. He was initially a member of the retinue of the sakellarios Philagrius, and was tasked in early 641 by Emperor Constantine III (r. February–May 641) to distribute money to the troops in order to secure their loyalty to his infant son Constans, and not the faction of Heraclius's empress-dowager Martina. It is possible that he had been appointed as general or plenipotentiary over the Byzantine army, or that he held the post of comes Obsequii. but primary sources only state that he was allowed to wear the imperial purple. At the same time, he was appointed commander-in-chief of the Byzantine army, and his daughter Fausta was married to the young Emperor Constans II and proclaimed augusta. In 643 or 644, Valentinus led a campaign against the Arabs, reportedly in a concerted pincer movement with another army under an Armenian general named David. Valentinus's army, however, was routed and he himself reportedly panicked and fled, leaving his treasury to be captured by the Arabs. This severely strained his ties with Constans and the Byzantine Senate.

In 644 or 645, Valentinus attempted to usurp his son-in-law's throne. He appeared at Constantinople with a contingent of troops, and demanded to be crowned emperor. His bid for the throne, however, failed, since both the capital's populace and the leading men of the state, Patriarch Paul II foremost, rejected his claim. According to the chroniclers, the populace lynched his envoy Antoninus, before proceeding to kill Valentinus himself.

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Important facts

Died
644, Constantinople
Occupation
Regent
Nationality

Frequently asked questions

Who was Valentinus?

Byzantine general and usurper

When did Valentinus die?

Valentinus died in 644 in Constantinople.

What was Valentinus's occupation?

Valentinus was a regent.

What nationality was Valentinus?

Valentinus was Byzantine.

Sources & further reading

· Wikipedia: Valentinus

· Wikidata: Q887162

· DBpedia: Valentinus (usurper)

Cite this page

APA: Biography.guide. (2026). Valentinus. https://biography.guide/valentinus/

MLA: "Valentinus." Biography.guide, https://biography.guide/valentinus/.

Chicago: "Valentinus." Biography.guide. https://biography.guide/valentinus/.

Data last updated: 2026-09-20 · Spot an error? Report a correction.

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