John deCourtenay
John was born on July 26th, 1224 in Okehampton, Devonshire, England.  He died at the age of 49 on May 3rd, 1274.

 Isabel deVere
Isabel was born about 1228 in Totnes, Devonshire, England.

 Hugh deCourtenay
Hugh was born on March 25th, 1250 in Oakhamton, Devonshire, England..  He died in Cullicomb, Devonshire, England..