Sir William de Willoughby Lord Willoughby(ca 1370 - 4 Dec 1409) John Montacute Earl of Salisbury(ca 1350 - 5 Jan 1400)
Lucy Lestrange( - aft 1398) Maud Fraunceys( - bef 5 Aug 1424)
m. bef 21 Feb 1421
Robert de Willoughby Lord Willoughby Elizabeth Montagu
b. ca 1385
d. 25 Jul 1452
dspm. 6th baron. KG 128: c.1417. Served in many wars.
b.  
d. ca 1445
 
Children
Joan Willoughby Baroness Willoughby(ca 1425 - bef 13 Feb 1462)