John De Saint John
John was born in Basing, , Hampshire, England.  He died on May 14th, 1329 in Basing, , Hampshire, England.

 Isabell De Courtenay
Isabell was born in 1283 in Okehampton, , Devon, England.  She died at the age of 42 in 1325 in Basing, , Hampshire, England.

 Margaret Saint John
Margaret was born in 1308 in Hatch, , Somerset, England.  She died at the age of 53 on November 19th, 1361 in Hatch, , Somerset, England.