 
| Type | Valeur | 
|---|---|
| Titre | Legacy NFS Source: Gilbert de Gaunt - | 
| Powlett, Duchess of Cleveland, Catherine Lucy Wilhelmina, The BattleAbbey Roll, Catherine Lucy Wilhelmina, Duchess of Cleveland, Name: John Murray; Location: London; Date: 1889;, Page number: Vol. III, pp. 307-308 | 
| Powlett, Duchess of Cleveland, Catherine Lucy Wilhelmina. The BattleAbbey Roll. 3 volumes. London: John Murray, 1889. |