תרשים קומפקטי:
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Baron Robert Willoughby 1343-1396 (53) | Roger Le Strange 1327-1382 (55) | | | ||||||||||
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Baron William Willoughby 1370/71-1409 (38) | ![]() | Thomas Willoughby 1387-1432 (45) | ![]() | Lucy Le Strange 1367-1405 (38) | Robert Strangeways 1369- | ![]() | Thomas Strangeways 1395-1441/42 (47) | ![]() | Matilda Cheswyk 1371- | ||||
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Alice Skipwith 1355- | Aline (Olive) Fitzalan 1314-1386 (72) | | | ||||||||||
Sir William Willoughby 1430- |
| Joan Strangeways 1427-1484/85 (58) | |||||||||||
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Baron John Fitzalan 1348-1379 (31) | | Lord John De Neville 1328-1388 (60) | Duke John "of Gaunt" England 1340-1398/99 (58) | ||||||||||
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Sir Richard Arundel 1366-1419 (53) | ![]() | Jane Fitzalan 1403- | ![]() | Alice NN 1370- | Earl Ralph De Neville 1364-1425/26 (62) | ![]() | Duchess Catherine De Neville 1397-1478 (81) | ![]() | Countess Joan De Beaufort 1375-1440 (65) | ||||
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Baroness Eleanor Maltravers 1346-1404/05 (59) | | Maud De Percy 1335-1378/79 (44) | Katherine De Roet 1350-1403 (53) |