John II of Castile was King of Castile and León from 1406 to 1454. He succeeded his older sister, Maria of Castile, Queen of Aragon, as Prince of Asturias in 1405.
Ralph Neville, 1st Earl of WestmorlandEarl Marshal, was an English nobleman of the House of Neville.
Jacqueline, of the House of Wittelsbach, was a noblewoman who ruled the counties of Holland, Zeeland and Hainaut in the Low Countries from 1417 to 1433. She was also Dauphine of France for a short time between 1415 and 1417 and Duchess of Gloucester in the 1420s, if her marriage to Humphrey, Duke of Gloucester, is accepted as valid.
Sir Thomas Erpingham was an English soldier and administrator who loyally served three generations of the House of Lancaster, including Henry IV and Henry V, and whose military career spanned four decades. After the Lancastrian usurpation of the English throne in 1399, his career in their service was transformed as he rose to national prominence, and through his access to royal patronage he acquired great wealth and influence.
Walter Hungerford, 1st Baron Hungerford was an English knight and landowner, from 1400 to 1414 a Member of the House of Commons, of which he became Speaker, then was an Admiral and peer.
Sir John GreyKG, English nobleman and soldier, of Ruthin, Denbighshire, Wales, Badmondisfield, Suffolk, Great Gaddesden, Hertfordshire, etc., second but eldest surviving son and heir apparent of Sir Reginald Grey, 3rd Baron Grey de Ruthyn by his 1st wife, Margaret Roos. He was also Captain of Gournay. He was Lord Lieutenant of Ireland in 1427-28, acting mainly through the Bishop of Meath as his Deputy.
Lady Alice Holland, Countess of Kent, LG, formerly Alice FitzAlan, was an English noblewoman, a daughter of the 10th Earl of Arundel, and the wife of the 2nd Earl of Kent, the half-brother of King Richard II. As the maternal grandmother of Anne de Mortimer, she was an ancestor of kings Edward IV and Richard III, as well as King Henry VII and the Tudor dynasty through her daughter Margaret Holland. She was also the maternal grandmother of Joan Beaufort, Queen of Scots.
Ida de Grey or Edith de Grey, was a Cambro-Norman noblewoman, and the daughter of Reginald Grey, 2nd Baron Grey de Ruthyn, a powerful Welsh Marcher lord. The Greys of Ruthyn were the chief Marcher barons in the northern region of the Welsh Marches.
Roger Flower or Flore was an English politician, twelve times MP for Rutland and four times Speaker of the House of Commons.
John Montagu, 3rd Earl of Salisbury and 5th and 2nd Baron Montagu, KG was an English nobleman, one of the few who remained loyal to Richard II after Henry IV became king.
Thomas Montagu, 4th Earl of Salisbury, KG of Bisham in Berkshire, was an English nobleman and one of the most important English commanders during the Hundred Years' War.
Sir Philip Courtenay of Powderham, Devon, was the senior member of a junior branch of the powerful Courtenay family, Earls of Devon.
Sir Thomas de Ashton or Assheton, was an English alchemist.
Sir Hugh Luttrell, of Dunster Castle in Somerset, feudal baron of Dunster, was an English nobleman and politician, who was an important military officer during the Hundred Years' War. He was a close associate of his cousin, King Richard II of England, and was one of his most valuable advisors. He was also an esquire of John of Gaunt, and an extremely close friend to Queen Anne of Bohemia.
Sir Hugh Waterton, was a trusted servant of the House of Lancaster.
Sir Richard Arches, of Eythrope, in the parish of Waddesdon, Buckinghamshire, was MP for Buckinghamshire in 1402. He was knighted before 1401.
Robert Hill (c.1361–1423) of Spaxton, Somerset was four times MP for Somerset, in 1414 and 1415 jointly with Sir Hugh Luttrell (c.1364–1428) of Dunster Castle, and then in 1416 and 1419.
Sir John Hill of Kytton in the parish of Holcombe Rogus, and of Hill's Court in the parish of St Sidwell in the City of Exeter, both in Devon, was a Justice of the King's Bench from 1389 to 1408. He sat in Parliament for a number of Devon boroughs between 1360 and 1380.
Sir William Harrington of Hornby, son of Sir Nicholas Harrington and Isabella/Isabel de Engleys/English. Likely to have been named after his maternal grandfather, William de Engleys, William Harrington was an early fifteenth-century English northern knight, fighting in the Hundred Years' War and serving the crown in the north of England. He was also a official Standard Bearer of England.
John Waterton was an English landowner, administrator, courtier, diplomat, and politician who sat in the Parliament of England.
