| title | ISBN-13 | year of publica- tion | other author(s) | |
|---|---|---|---|---|
| Cluniacs and the Gregorian Reform | 978-0-19-826429-3 | 1970 | ||
| Lanfranc: Scholar, Monk, and Archbishop: Scholar, Monk, Archbishop | 978-0-19-925960-1 | 2003 | ||
| Popes and Church Reform in the 11th Century | 978-0-86078-797-6 | 2000 | ||
| The Crusades and Latin Monasticism, 11th-12th Centuries | 978-0-86078-795-2 | 1999 | ||
| The Register of Pope Gregory VII 1073-1085. | 978-3-87125-226-6 | |||
| The Register of Pope Gregory VII 1073-1085: An English Translation | 978-0-19-924980-0 | 2002 | Gregory | |
E C. · E. J. · H. C. · H. E. · H. E. Cowdrey · H.J. · J C
Christiani, Paul · Oxford University Press · Routledge