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 St. John
Agnes was born before 1322.  She died on August 2nd, 1385.

 Hugh Decourtenay
Hugh was born on July 12th, 1303 in Okehampton, Devon, , England.²   He died at the age of 73 on May 2nd, 1377 in Exeter, Devon, , England.² 

 Margaret De Courtenay
Margaret was born before 1322.  She died on August 2nd, 1385.