By Somerville, Angus A., McDonald, R. Andrew
By Hodges, Michael
By Robert Spencer
By S.J. Allen, Emilie Amt
By Thomas G. Madden, Thomas F. Madden (Saint Louis University)
By Möhring, Hannes
By Maher, Shiraz
By Norwich, Viscount John Julius
By Riley-Smith
By Peters, Edward
By Chazan
By Torr, Geordie
By Robert Hardy, Matthew Strickland
By Rubin, Miri
By Asbridge, Thomas
By Harris, Jonathan
By Hallam, Elizabeth M.
By Severin, Tim
By Wood, Michael
By Carroll, Warren H.
By Riley-Smith, Professor Jonathan
By Jordan, William Chester
By Norwich, John Julius
By Mayer, H.E., Gillingham, John
By Joinville, Jean De, Villehardouin, Geffroy, Jean, Shaw, Margaret
By Gabrieli, Francesco
By Cantor, Norman F.
By Dan Jones