| Name | William de Willoughby | |
| Suffix | Sir, 5th Baron Willoughby de Eresby | |
| Birth | Abt. 1370 | |
| Gender | Male | |
| Death | 1409 | |
| Person ID | I322346695697 | Hurst Improbable Family Tree |
| Last Modified | 15 Jun 2026 | |
| Father | Robert Willoughby, 4th Baron Willoughby de Eresby , b. Abt. 1349 d. 9 Aug 1396 (Age 47 years) | |
| Mother | Alice Skipwith, Lady, Baroness Willoughby de Eresby | |
| Family ID | F2107 | Group Sheet | Family Chart |
Family 1 ![]() |
Lucy Le Strange | |||
| Children |
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| Family ID | F3725 | Group Sheet | Family Chart | ||
| Last Modified | 15 Jun 2026 | |||
Family 2 ![]() |
Joan Holland, Duchess of York, Lady Companions of the Garter, b. Abt. 1380, Upholland, Lancashire, England d. 12 Apr 1434 (Age 54 years) | |
| Family ID | F3726 | Group Sheet | Family Chart |
| Last Modified | 15 Jun 2026 | |