Note 178 — Chapter X · STRUGGLE OF THE EMPIRE AND THE PAPACY.
Reading edition
Letter of Gregory VII to William I, A.D. 1080. I quote from Migne, t. cxlviii. p. 568.
Reading edition
Letter of Gregory VII to William I, A.D. 1080. I quote from Migne, t. cxlviii. p. 568.