The popes often complain of the usurpations of Leo of Ravenna (Codex Carolin, epist. 51, 52, 53, p. 200-205.).
Sir corpus St. Andreae fratris germani St. Petri hic humasset, nequaquam nos Romani pontifices sic subjugassent (Agnellus, Liber Pontificalis, in Scriptores Rerum Ital. tom. ii. pars. i. p. 107.).