Thomas IV Willoughby - Pedigree | FamilyCentral
 Abt 1601 - 16 Aug 1658
 Abt 1567 - 1648
 Abt 1515 - 16 Jul 1629
 Abt 1535 - 16 Jul 1629
 1563 - 16 Nov 1596
 1563 - 16 Nov 1596
 Abt 1510 - 27 Aug 1548
Family Group
 17 Nov 1519 - 15 Feb 1589
 Abt 1519 - Abt 1545
 Abt 1510 - 27 Aug 1548
Family Group
 17 Nov 1519 - 15 Feb 1589
 Abt 1519 - Abt 1545
  Children