Click to expand/collapse all notes Click to expand/collapse all other details

Male William St Baron De Grandison Click to view William St Baron De Grandison in the family tree

William St Baron De was born about 1255 in Ashperton, Herefordshire, England.  William St Baron De's father was Amadeus De Grandson and his mother was Benoite De La Tour.  His paternal grandparents were Pierre I Sire De Grandson and Agnes De Neuchatel.  He was an only child.  He died on June 27th, 1335 in Lambourn, Berkshire, England.  He was buried in Dore Abbey, Sussex, England.


William St Baron De's first family with Sibyl De Tregoz

‌William St Baron De and Sibyl De were married in a religious ceremony about 1286 in Donyatt, Somerset, England.  They had a son and two daughters, named Piers Nd Baron De, Mabel De and Katherine.


William St Baron De's second family with Blanche De Savoie

They had a daughter named Agnes De.

Page last modified

\