Henry VI of England in accordance with the Treaty of Troyes of 1420, he became titular King of France upon his grandfather Charles VI's death. His mother, Catherine of Valois, was then 20 years old. As Charles VI's daughter, she was viewed with considerable suspicion by English nobles and was prevented from playing a full role in her son's upbringing. On 28 September 1423, the nobles swore loyalty to Henry VI. They summoned Parliament in the King's name and established a regency council to govern until the King should come of age. One of Henry V's surviving brothers, John, Duke of Bedford, was appointed
Henry IV of England and Henry VI's son Edward, Prince of Wales. The descendants of Henry IV's son Humphrey, Duke of Gloucester, include Elizabeth Bowes-Lyon, queen consort of George VI and mother of Elizabeth II, and the Queen's current daughters-in-law Camilla, Duchess of Cornwall, and Sophie, Countess of Wessex. Mary de Bohun died in 1394, and on 7 February 1403 Henry married Joanna of Navarre, the daughter of Charles d'Évreux, King of Navarre, at Winchester. She was the widow of John IV, Duke of Brittany (known in traditional English sources as John V), with whom she had had four daughters and four sons; however,