Sir Geoffrey Gresley
Sir Geoffrey was born about 1298 in Morton, Derbyshire, England.  He died in 1332.

 Margaret De Gernon
Margaret was born about 1304 in Launton, Oxford, England.  She died about 1352.

 Sir John Gresley
Sir John was born about 1325 in Morton, Derbyshire, England.  He died about 1395.