 
| Type | Valeur | 
|---|---|
| Titre | Rognvald, Ragnhild and Rollo in A History of the Sea-Kings of Orkney, pg. 7-8, 10-11 [See document in the Memories section] | 
| Personnes | 
|---|
|  GONGU Hrolf "ROLLO: Longsword HP02 RO01 SK01 | 
| A History of the Sea-Kings of Orkney, pg. 7-8, 10-11. |