I shall quote the authentic testimony of the Saxon poet (A.D. 887-899), de Rebus gestis Caroli magni, l. v. 437-440, in the Historians of France (tom. v. p. 180):
Ad quae marmoreas praestabat ROMA columnas,
Quasdam praecipuas pul hra Ravenna dedit.
De tam longinquâ poterit regiona vetustas
Illius ornatum, Francia, ferre tibi.
And I shall add from the Chronicle of Sigebert (Historians of France , tom. v. p. 378),
extruxit etiam Aquisgrani basilicam plurimae pulchritudinis, ad cujus structuram a ROMA et Ravenna columnas et marmora devehi fecit.