Nielsen Hayden genealogy
Ancestors of Robert de Willoughby
1260 - Bef 1317 (~ 67 years) ┌── William de Willoughby (of Sloothby in Willoughby in the Marsh, Lincolnshire, England -
│ Between 1225 and 1227)
│ Between 1225 and 1227)
┌── Robert de Willoughby ( - Between 3 Feb 1257 and 21 Feb 1258)
│ │ ┌── William de Fulletby
│ └── Maud de Fulletby
│
┌── William de Willoughby ( - Between Sep 1290 and 29 Mar 1300)(m. Between 1250 and 1260)
Robert de Willoughby (Between 1250 and 1260 - Bef 25 Mar 1317)
│
│ ┌── Henry Beke (of Eresby, Lincolnshire, England - ??)
│ ┌── Walter Beke (of Eresby, Lincolnshire, England - Aft 1236)(m. 1222)
│ ┌── John Beke (Bef 1230 of Eresby, Lincolnshire, England - Bef 10 Mar 1304)
│ │ └── Eve de Grey (m. 1222)
│ │
└── Alice Beke ( - Bef May 1311)(m. Between 1250 and 1260)