 
| Type | Valeur | 
|---|---|
| Titre | Ragnvald and Rollo in Monumenta Orcadica, The Norsemen in the Orkneys, pg. 64 [See document in the Memories section] | 
| Personnes | 
|---|
|  GONGU Hrolf "ROLLO: Longsword HP02 RO01 SK01 | 
| Monumenta Orcadica, The Norsemen in the Orkneys, pg. 64. |