William De Grandison
William was born in 1256 in Cassington, Oxfordshire, England.  He died at the age of 79 on June 27th, 1335 in Lambourn, Hungerford, Berkshire, England.

 Blanche De Savoy
Blanche was born in 1267 in ,Harpenden, Hertfordshire, England.  She died in Grandison, Lake Neufchatel, Switzerland.

 Agnes De Grandison
Agnes was born in 1289 in Harpenden, Hertfordshire, England.  She died at the age of 68 on December 11th, 1357 in Ruskington, Lincolnshire, England.