 
| Type | Valeur | 
|---|---|
| Titre | William Willoughby, "Find A Grave Index" | 
| Personnes | 
|---|
|  Sir WILLIAM de Willoughby | 
| "Find A Grave Index," database, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:QVKJ-6TVJ : 24 May 2022), William Willoughby, ; Burial, , ; citing record ID 49381155, Find a Grave, http://www.findagrave.com. |