Peerage Record – 10740

     Thomas Courtenay, 6th Earl of Devon was born in 1432.¹ He was the son of Thomas Courtenay, 5th Earl of Devon and Lady Margaret Beaufort.¹ He died on 3 April 1461, executed, unmarried.¹
     He succeeded as the 7th Lord Courtenay [E., 1299] on 3 February 1458.² He succeeded as the 6th Earl of Devon [E., 1335] on 3 February 1458.² He held the office of Keeper of Exmoor Forest in 1459.² He fought in the Battle of Towton on 29 March 1461.² All of his honours became forfeited.²

     Henry Courtenay was the son of Thomas Courtenay, 5th Earl of Devon and Lady Margaret Beaufort.¹ He died on 4 May 1466 at Salisbury, Wiltshire, England^G, executed for treason.²
     He lived at Topsham, Devon, England^G.²
     He would have succeded to the Earldom in 1461, but for its attainder by the Yorkists; was restored to part of the Devon estates by Edward IV 1461; but continuing to plot on behalf of the Red Rose, was himself arraigned before Edward IV and justices at Salisbury, 4 May 1466, and beheaded with Lord Hungerford on the same day.

     Joan Courtenay was the daughter of Thomas Courtenay, 5th Earl of Devon and Lady Margaret Beaufort.¹ She married, firstly, Sir Roger Clifford, son of Thomas de Clifford, 8th Lord Clifford and Joan Dacre.¹ She married, secondly, Sir William Knyvett after 1485.²
     Her married name became Clifford.¹ From after 1485, her married name became Knyvett.²

     Sir Roger Clifford was born in 1437.² He was the son of Thomas de Clifford, 8th Lord Clifford and Joan Dacre.² He married Joan Courtenay, daughter of Thomas Courtenay, 5th Earl of Devon and Lady Margaret Beaufort.¹ He died in 1485, beheaded.³

     Elizabeth Courtenay was the daughter of Thomas Courtenay, 5th Earl of Devon and Lady Margaret Beaufort.¹ She married Sir Hugh Conwy, son of John Conwy and Alice Minshall.¹
     Her married name became Conwy.¹

     Watkin Williams was the son of Richard Williams and Annabella Lloyd.¹ He married Elizabeth Stapleton, daughter of Colonel James Russell Stapleton and Penelope Conway.¹ He died, without issue.²
     He lived at Penbedw, Denbighshire, Wales.¹

     Lady Margaret de Neville was born circa 1384.^2,3 She was the daughter of Sir Thomas de Neville and Joan Furnivall.¹ She married Thomas de Beaufort, 1st Duke of Exeter, son of John of Gaunt, Duke of Lancaster and Katherine Roët, before 15 February 1403/4.¹ She died between 1413 and 1426, without issue.¹ She was buried at Lady Chapel, Bury St. Edmonds Abbey, Bury St. Edmunds, Suffolk, England^G.¹
     From before 15 February 1403/4, her married name became Beaufort. She was appointed Lady Companion, Order of the Garter (L.G.) in 1408.¹

     Sir Thomas de Neville was the son of Sir Robert (III) de Neville, Lord of Hornby and Margaret de la Pole.² He died before 1387.²
     He lived at Hornby, Lincolnshire, England^G.¹

     Henry de Beaufort was born before 1413. He was the son of Thomas de Beaufort, 1st Duke of Exeter and Lady Margaret de Neville.¹ He died, young.¹