Sir William De Grandison
Sir William was born about 1263 in Cassington, Oxfordshire, England.  He died on June 27th, 1335 in Lombourn Eaton, Hereford, England.

 Sibyle De Tregoz
Sibyle was born in 1260 in Ewyas, Herefordshire, England.  She died at the age of 74 on October 12th, 1334.

 Piers De Grandison
Piers was born about 1278.

 Mabilia De Grandison
Mabilia was born about 1282 in Ashperton, Herefordshire, England.

 John De Grandison
John was born about 1284.

 Katherine De Grandison
Katherine was born about 1286 in Cassington, Oxfordshire, England.  She died on November 23rd, 1349 in Bisham, Berkshire, England.

 Otho De Grandison
Otho was born about 1298.

 Agnes De Grandison
Agnes was born about 1300.