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Male William De Montagu Click to view William De Montagu in the family tree

William De was born on June 25th, 1328 in Salisbury, Wiltshire, England.  William De's father was William De+ Montagu and his mother was Catherine De+ Grandison.  His paternal grandparents were William De+ Montagu and Elizabeth De+ Montfort; his maternal grandparents were Giullaume De+ Grandison and Sybil De+ Tregoz. He had two brothers and four sisters, named John De+, Robert, Elizabeth De+, Sibyl+, Philippa+ and Anne.  He was the third oldest of the seven children.  He died at the age of 68 on June 3rd, 1397.


William De's first family with Joan of Wales+ Plantagenet

‌William De and Joan of Wales+ were married in a religious ceremony about 1345.


William De's second family with Elizabeth De Mohun



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