| Frank Barlow |
The Ecclesiastical History of Orderic Vitalis vol. VI: Books xi, xii, and xiii (Oxford Medieval Texts), by Marjorie Chibnall |
|
48/1, p. 118 |
| Karl Leyser |
Regesta Regum Anglo-Normannorum 1066-1154, Volume II : Regesta Henrici Primi 1100-1135, by Charles Johnson, H. A. Cronne |
|
29/3, p. 211 |