John de St. John
John de was born in 1308 in Lageham, Surrey, England.  He died at the age of 41 on April 8th, 1349.

 Katherine de Saye
Katherine was born about 1310 in Berling, Kent, England.  She died after 1355.

 Elizabeth de St. John
Elizabeth de was born about 1345 in Lageham, Surrey, England.  She died about 1411.