William Courtenay
William was born about 1425 in Powderham Castle, Devonshire, England.  He died in September 1485.

 Margaret Bonville
Margaret was born about 1425 in Powderham Castle, Devonshire, England.  She died before July 1487.  She was buried in Powderham, Devonshire, England.

 William Courtenay
William was born about 1451 in Powderham, Devonshire, England.  He died before July 10th, 1512.

 Edward Courtenay
Edward was born about 1453 in Landrake, Cornwall, England.  He died on March 1st, 1509.  He was buried in Landrake, Cornwall, England.

 Elizabeth Courtenay
Elizabeth was born about 1459.  She died on October 1st, 1518.