 
| Type | Valeur | 
|---|---|
| Titre | Rollo, Rognvald, William Longsword, Richard I, Richard II in William the Conqueror, The Normand Impact Upon England, pg. 16-17 [See document in the Memories section] | 
| Personnes | 
|---|
|  GONGU Hrolf "ROLLO: Longsword HP02 RO01 SK01 | 
| William the Conqueror, The Normand Impact Upon England, pg. 16-17. |