 
| Type | Valeur | 
|---|---|
| Titre | The parentage of William de Lancaster, lord of Kendal | 
| Personnes | 
|---|
|  WILLIAM FitzGilbert de Lancaster Baron of Kendal and Lonsdale | 
| Washington, George (1962), "The parentage of William de Lancaster, lord of Kendal", Transactions of the Cumberland & Westmorland Antiq. & Arch. Soc, New Series, 62: 95–97. |