Valentinian III

or Valentinianus III

noun

a.d. 419?–455, emperor of the Western Roman Empire 425–455.

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British Dictionary definitions for valentinian iii

Valentinian III

Valentinianus III

noun

?419–455 ad, emperor of the Western Roman Empire (425–455). His government lost Africa to the Vandals. With Pope Leo I he issued (444) an edict giving the bishop of Rome supremacy over the provincial churches

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