Mosheim (Institution, Hist. Eccles. p. 263) weighs this donation with fair and deliberate prudence. The original act has never been produced; but the Liber Pontificalis represents, (p. 171,) and the Codex Carolinus supposes, this ample gift. Both are contemporary records and the latter is the more authentic, since it has been preserved, not in the Papal, but the Imperial, library.