- Author: Orderic Vital Marjorie Chibnall
- Language: English
- Year: 1973
- Author: Pope Gregory VII, H. E. J. Cowdrey
- Language: Latin, English
- Year: 1972
- Author: Lanfranc of Bec, Helen Clover, Margaret Gibson
- Language: Latin, English
- Year: 1979
- Author: Hugh Lawrence
- Language: English
- Year: 2006
- Author: Rosalind C. Love
- Language: English
- Year: 2004