William de Grandison, Knight
Birth:
Abt 1255/64
of Cassington, Oxfordshire, England
Death:
27 Jun 1335
FCID:16080:8690
Parents
Father:
Pierre I Sire de Grandson
Mother:
Agnes de Neuchatel
Marriage(s)

Sybil Tregoz
md. Abt 1285/86
of Donyatt, Somersetshire, England
Children
1.
Pie ... Grandison, Baron Grandison
b. 1286
2.
Living
3.
Living
4.
John Grandison
b. 1299
5.
Living