Odiosa sanctitas : St Peter Damian, simony, and reform /
McCready, William D.(William David),1943-
Pontifical Institute of Mediaeval Studies.
Toronto, Ont. : Pontifical Institute of Mediaeval Studies,
c2011.
Includes bibliographical references and index.
Peter Damian, Saint, 1007?-1072.
Vallombrosa (Monastery)
Simony