Ivo of Chartres
| Author(s) | Title | Reference | |
|---|---|---|---|
| C.N.L. Brooke | Medieval Marriage: Two Models from Twelfth-Century France, by Georges Duby, Elborg Foster | 49/1, p. 128 | |
| M.J. Wilks | Church, Kingships and Lay Investiture in England, 1089-1135, by Norman F. Cantor | 30/2, p. 134 |