Hugh "Earl of Devon" De Courtenay
Hugh "Earl of Devon" was born on September 14th, 1273 in Okehampton, Devon, England.¹   He died at the age of 67 on December 23rd, 1340 in Exter, Devon, England.¹ 

 Agnes De Saint John
Agnes was born in 1279 in Basing, Hampshire, England.²   She died at the age of 66 on June 11th, 1345 in Cowick, Exeter, Devon, England.² 

 Thomas De Courtenay
Thomas was born in 1311 in Watton, Surrey, England.²   He died at the age of 26 on August 21st, 1337 in Woodhuish Dunterton, Devonshire, England.²