William Earl de Devon de COURTENAY
William Earl de Devon is no longer alive.

 Catherine Plantagenet (Countess) de ENGLAND
Catherine Plantagenet (Countess) was born on August 14th, 1479 in Eltham Palace, Kent, England.¹   She died at the age of 48 on November 15th, 1527 in Tiverton Castle, Devonshire, England.¹ 

 Edward de COURTENAY
Edward was born about 1497.¹ 

 Henry Marquis de Exeter de COURTENAY
Henry Marquis de Exeter was born about 1498.¹ 

 Margaret de COURTENAY
Margaret was born about 1499.¹