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Henry V, (born September 16?, 1387, Monmouth, Monmouthshire, Wales—died August 31, 1422, Bois de Vincennes, France), king of England (1413–22) of the house of Lancaster, son of Henry IV. As victor of the Battle of Agincourt (1415, in the Hundred Years’ War with France), he made England one of the strongest kingdoms in Europe.
Henry was the eldest son of Henry, earl of Derby (afterward Henry IV), by Mary de Bohun. On his father’s exile in 1398, Richard II took the boy into his own charge, treated him kindly, and knighted him in 1399. Henry’s uncle, Henry Beaufort, bishop of Winchester, seems to have been responsible for his training, and, despite his early entry into public life, he was well educated by the standards of his time. He grew up fond of music and reading and became the first English king who could both read and write with ease in the vernacular tongue. On October 15, 1399, after his father had become king, Henry was created earl of Chester, duke of Cornwall, and prince of Wales, and soon afterward, duke of Aquitaine and Lancaster. From October 1400 the administration of Wales was conducted in his name, and in 1403 he took over actual command of the war against the Welsh rebels, a struggle that absorbed much of his restless energy until 1408. Thereafter he began to demand a voice in government and a place on the council, in opposition to his ailing father and Thomas Arundel, archbishop of Canterbury. The stories of Prince Henry’s reckless and dissolute youth, immortalized by Shakespeare, and of the sudden change that overtook him when he became king, have been traced back to within 20 years of his death and cannot be dismissed as pure fabrication. This does not involve accepting them in the exaggerated versions of the Elizabethan playwrights, to which the known facts of his conduct in war and council provide a general contradiction. Probably they represent no more than the natural ebullience of a young man whose energies found insufficient constructive outlet. The most famous incident, his quarrel with the chief justice, Sir William Gascoigne, was a Tudor invention, first related in 1531.
Henry succeeded his father on March 21, 1413. In the early years of his reign his position was threatened by an abortive Lollard rising (January 1414) and by a conspiracy (July 1415) of Richard of York, earl of Cambridge, and Henry, Lord Scrope of Masham, in favour of Edmund Mortimer, earl of March. On each occasion Henry was forewarned and the opposition was suppressed without mercy. Neither incident long distracted him from his chief concern: his ambitious policy toward France. Not content with a demand for possession of Aquitaine and other lands ceded by the French at the Treaty of Calais (1360), he also laid claim to Normandy, Touraine, and Maine (the former Angevin holdings) and to parts of France that had never been in English hands. Although such demands were unlikely to be conceded even by the distracted government of France under King Charles VI, Henry seems to have convinced himself that his claims were just and not a merely cynical cover for calculated aggression. Yet if “the way of justice” failed, he was ready to turn to “the way of force,” and warlike preparations were well advanced long before the negotiations with Charles, initiated during the reign of Richard II, were finally broken off in June 1415.
The French wars
Henry V’s true genius is revealed in the planning and execution of his subsequent campaigns for the conquest of France. Before hostilities began, his diplomatic skill was exerted in an effort to secure the support or at least the neutrality of John the Fearless, duke of Burgundy. His attempts to deprive France of maritime assistance show an awareness of the importance of sea power unusual in medieval kings, and after the Battle of the Seine (August 1416), England’s naval mastery of the Channel was not seriously disputed. At home, Henry turned to the systematic financing of his projected invasion, partly through large-scale borrowing, partly through parliamentary taxation, the generosity of which reflects his success in arousing national enthusiasm for the war. Henry began the struggle with the wholehearted support of the magnates and the backing of a united nation. His military strategy was conceived with equal ability. It stands in marked contrast with the haphazard and spasmodic operations of the English in France in the previous century. His main objective, to which the winning of battles was largely irrelevant, was the systematic reduction of the great towns and fortresses of northern France. These, kept as headquarters of permanent English garrisons, would become focal points for the subjection of the surrounding countryside; behind the soldiers were to come administrators and tax collectors, who would make the war pay for itself. Despite the forethought and grasp this plan displayed, its execution took longer than Henry had anticipated. It absorbed his energies for seven years and brought him to an early grave.
His first campaign brought the capture of Harfleur (September 1415) and the great victory of Agincourt (October 25, 1415). This resounding triumph made Henry the diplomatic arbiter of Europe: it won him a visit (1416) from the Holy Roman emperor Sigismund, with whom he made a treaty of alliance at Canterbury (1416) and whose influence was used to detach Genoa from its naval alliance with France. The cooperation of the two rulers led directly to the ending of the papal schism through the election of Martin V (1417), an objective that Henry had much at heart. Thereafter he returned to the long, grim war of sieges and the gradual conquest of Normandy. Rouen, the capital of northern France, surrendered in January 1419, and the murder of Duke John of Burgundy in September 1419 brought him the Burgundian alliance. These successes forced the French to agree to the Treaty of Troyes on May 21, 1420. Henry was recognized as heir to the French throne and regent of France, and Catherine, the daughter of Charles, was married to him on June 2. He was now at the height of his power, but his triumph was short-lived. His health grew worse at the sieges of Melun and Meaux, and he died of camp fever at the château of Vincennes in 1422.