William VI de Say
William VI was born on November 20th, 1253.  He died before September 16th, 1295.

 UNKNOWN Elizabeth
UNKNOWN was born before 1265.  She died after September 16th, 1295.

 Geoffrey III de Say
Geoffrey III was born in 1281 in Berling, Kent, England.  He died in Sawbridgeworth, Hertfordshire, England.