Regency government, 1422–1437 in the context of King Henry VI

Henry VI (6 December 1421 – 21 May 1471) was King of England from 1422 to 1461 and 1470 to 1471, and disputed King of France from 1422 to 1453. The only child of Henry V, he succeeded to the English throne at the age of eight months, upon his father's death, and to the French throne on the death of his maternal grandfather, Charles VI, shortly afterwards.

Henry was born during the Hundred Years' War (1337–1453). He is the only English monarch to have been crowned King of France, following his coronation at Notre-Dame de Paris in 1431 as Henry II. His early reign, when England was ruled by a regency government, saw the pinnacle of English power in France. However, setbacks followed once he assumed full control in 1437. The young king faced military reversals in France, as well as political and financial crises in England, where divisions among the nobility in his government began to widen. His reign saw the near total loss of English lands in France.

Humphrey of Lancaster, Duke of Gloucester (3 October 1390 – 23 February 1447) was an English prince, soldier and literary patron. He was, and styled himself as, "son, brother and uncle of kings", being the fourth and youngest son of Henry IV of England, the brother of Henry V, and the uncle of Henry VI. Gloucester fought in the Hundred Years' War and acted as Lord Protector of England during the minority of his nephew. A controversial figure, he has been characterised as reckless, unprincipled, and fractious, but is also noted for his intellectual activity and for being the first significant English patron of humanism, in the context of the Renaissance.

Unlike his brothers, Humphrey was given no major military command by his father, instead receiving an intellectual upbringing. Created Duke of Gloucester in 1414, he participated in Henry V's campaigns during the Hundred Years' War in France: he fought at Agincourt in 1415 and at the conquest of Normandy in 1417–9. Following the king's death in 1422, Gloucester became one of the leading figures in the regency government of the infant Henry VI. He proved a rash, impulsive, unscrupulous and troublesome figure, he quarrelled constantly with his brother, John, Duke of Bedford and uncle, Cardinal Henry Beaufort and went so far as to violently prosecute a dispute with the Duke of Burgundy, a key English ally in France, over conflicting claims to lands in the Low Countries.