| 5th Baron Willoughby de Eresby William Willoughby | |
| B: | Abt 1370 |
| Eresby, Lincolnshire, England | |
| D: | 06 Dec 1409 |
| Edgefield, Norfolk, England | |
| Lucy Le Strange | |
| B: | Abt 1352 |
| Knockin, Shropshire, England | |
| M: | Aft 03 Jan 1383 |
| D: | Aft 1405 |
| Lady Joan Holland Joan Holland | |
| D: | 12 Apr 1434 |
| Sir Thomas Willoughby | |
| D: | Abt 20 Aug 1417 |
| Margery la Zouche | |
| B: | Abt 1352 |
| England | |
| D: | 18 Oct 1391 |
| Lincolnshire, England | |
| 4th Baron Willoughby de Eresby Robert Willoughby | |
| B: | Abt 1350 |
| England | |
| M: | Bef 01 Oct 1369 |
| D: | 09 Aug 1396 |
| Eresby, Lincolnshire, England | |
| 3rd Baron Zouche William la Zouche | |
| B: | Abt 1355 |
| England | |
| D: | 04 May 1396 |
| 2nd Baron Zouche of Harringworth William la Zouche | |
| B: | Abt 25 Dec 1321 |
| England | |
| D: | 23 Apr 1382 |
|
| Eudo la Zouche | |
| B: | Between 1297 and 1298 |
| D: | Apr 1326 |
| Paris, Paris, | |
