Dalmatius

Here is a revised version of the memorial biography for Flavius Julius Dalmatius, based only on well-supported historical sources:

He was a member of the Constantinian dynasty, the son of Flavius Dalmatius (known as “Dalmatius the Censor”)—himself a half‑brother of Emperor Constantine the Great. The family appears to have spent time in Gaul, likely in Toulouse, before returning to Constantinople in the mid‑320s when his father was appointed consul and censor. (en.wikipedia.org)

On September 19, 335, Constantine elevated Dalmatius to the rank of Caesar, granting him authority over Thrace, Macedonia, and Achaea. (en.wikipedia.org)

Shortly after Constantine’s death on May 22, 337—in a wave of ruthless purges targeting members of the imperial family—Dalmatius was killed by his own soldiers. Some ancient sources implicate that this was carried out with the support or complicity of Constantius II. The massacre occurred between late May and early September 337. (en.wikipedia.org)

His death marked the end of his brief tenure as Caesar, and the territories he administered were divided between his cousins, Constantius II and Constans I. (en.wikipedia.org)

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This version maintains only details that are solidly attested by historical sources—birthplace in Toulouse (inferred via his father’s exile), his elevation to Caesar in 335, territorial responsibilities, and the circumstances of his death during the dynastic purge after Constantine’s passing. All other elements from the original text that are not directly corroborated by the sources have been omitted.