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Corpus Inscriptionum Latinarum; , VI, 1143 (p. 4329) 
Base for statue of Constantine I, emperor. Rome. 312-324 
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To the most powerful, merciful, and glorious prince, our lord Flavius Valerius Constantinus, pious, fortunate, invincible Augustus; Quintus Attius Granius Caelestinus, of clarissimus rank, caretaker of the bed of the Tiber and sewers of the sacred City, devoted to his divine spirit and majesty.
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