Hundred Years’ War, Phase One

The Hundred Years' War (; 1337–1453) was a series of armed conflicts between the kingdoms of England and France during the Late Middle Ages. It originated from disputed claims to the French throne between the English House of Plantagenet and the French royal House of Valois. Over time, the war grew into a broader power struggle involving factions from across Western Europe, fuelled by emerging nationalism on both sides.

The Hundred Years' War was one of the most significant conflicts of the Middle Ages. For 116 years, interrupted by several truces, five generations of kings from two rival dynasties fought for the throne of the dominant kingdom in Western Europe. The war's effect on European history was lasting. Both sides produced innovations in military technology and tactics, including professional standing armies and artillery, that permanently changed warfare in Europe; chivalry, which had reached its height during the conflict, subsequently declined. Stronger national identities took root in both countries, which became more centralised and gradually rose as global powers.

The term "Hundred Years' War" was adopted by later historians as a historiographical periodisation to encompass related conflicts, constructing the longest military conflict in European history. The war is commonly divided into three phases separated by truces: the Edwardian War (1337–1360), the Caroline War (1369–1389), and the Lancastrian War (1415–1453). Each side drew many allies into the conflict, with English forces initially prevailing. The House of Valois ultimately retained control over France, with the previously intertwined French and English monarchies thereafter remaining separate.

Overview

Origins

The root causes of the conflict can be traced to the crisis of 14th-century Europe. The outbreak of war was motivated by a gradual rise in tension between the kings of France and England over territory; the official pretext was the question that arose because of the interruption of the direct male line of the Capetian dynasty.

Tensions between the French and English crowns had gone back centuries to the origins of the English royal family, which was French ( Norman, and later, Angevin) in origin because of William the Conqueror, the Norman duke who became King of England in 1066. English monarchs had therefore historically held titles and lands within France, which made them vassals to the kings of France. The status of the English king's French fiefs was a major source of conflict between the two monarchies throughout the Middle Ages. French monarchs systematically sought to check the growth of English power, stripping away lands as the opportunity arose, particularly whenever England was at war with Scotland, an ally of France. English holdings in France had varied in size, at some points dwarfing even the French royal domain; by 1337, however, only Gascony was English.

In 1328, Charles IV of France died without sons or brothers, and a new principle, Salic law, disallowed female succession. Charles's closest male relative was his nephew Edward III of England, whose mother, Isabella, was Charles's sister. Isabella claimed the throne of France for her son by the rule of proximity of blood, but the French nobility rejected this, maintaining that Isabella could not transmit a right she did not possess. An assembly of French barons decided that a native Frenchman should receive the crown, rather than Edward.

So the throne passed instead to Charles's patrilineal cousin, Philip, Count of Valois. Edward protested but ultimately submitted and did homage for Gascony. Further French disagreements with Edward induced Philip, during May 1337, to meet with his Great Council in Paris. It was agreed that Gascony should be taken back into Philip's hands, which prompted Edward to renew his claim for the French throne, this time by force of arms.

Edwardian Phase

In the early years of the war, the English, led by their king and his son Edward, the Black Prince, saw resounding successes (notably at Crécy in 1346 and at Poitiers in 1356 where King John II of France was taken prisoner).

Caroline Phase and Black Death

By 1378, under King Charles V the Wise and the leadership of Bertrand du Guesclin, the French had reconquered most of the lands ceded to King Edward in the Treaty of Brétigny (signed in 1360), leaving the English with only a few cities on the continent.

In the following decades, the weakening of royal authority, combined with the devastation caused by the Black Death of 1347–1351 (with the loss of nearly half of the French population and between 20% and 33% of the English one) and the major economic crisis that followed, led to a period of civil unrest in both countries. These crises were resolved in England earlier than in France.

Lancastrian Phase and after

The newly crowned Henry V of England seized the opportunity presented by the mental illness of Charles VI of France and the French civil war between Armagnacs and Burgundians to revive the conflict. Overwhelming victories at Agincourt in 1415 and Verneuil in 1424 as well as an alliance with the Burgundians raised the prospects of an ultimate English triumph and persuaded the English to continue the war over many decades. However, a variety of factors such as the deaths of both Henry and Charles in 1422, the emergence of Joan of Arc which boosted French morale, and the loss of Burgundy as an ally—marking the end of the civil war in France—prevented it.

The Siege of Orléans in 1429 announced the beginning of the end for English hopes of conquest. Even with the eventual capture of Joan by the Burgundians and her execution in 1431, a series of crushing French victories such as those at Patay in 1429, Formigny in 1450 and Castillon in 1453 concluded the war in favour of the Valois dynasty. England permanently lost most of its continental possessions, with only the Pale of Calais remaining under its control on the continent, until it too was lost in the Siege of Calais in 1558.

Related conflicts and aftereffects

Local conflicts in neighbouring areas, which were contemporarily related to the war, including the War of the Breton Succession (1341–1365), the Castilian Civil War (1366–1369), the War of the Two Peters (1356–1369) in Aragon, and the 1383–85 crisis in Portugal, were used by the parties to advance their agendas.

By the War's end, feudal armies had been largely replaced by professional troops, and aristocratic dominance had yielded to a democratisation of the manpower and weapons of armies. Although primarily a dynastic conflict, the war inspired French and English nationalism. The wider introduction of weapons and tactics supplanted the feudal armies where heavy cavalry had dominated, and artillery became important. The war precipitated the creation of the first standing armies in Western Europe since the Western Roman Empire, and helped change their role in warfare.

In France, civil wars, deadly epidemics, famines, and bandit free-companies of mercenaries reduced the population drastically. In England, political forces over time came to oppose the costly venture. The dissatisfaction of English nobles, resulting from the loss of their continental landholdings, as well as the general shock at losing a war in which investment had been so great, helped lead to the Wars of the Roses (1455–1487).

Causes and prelude

Dynastic turmoil in France: 1316–1328

The question of female succession to the French throne was raised after the death of Louis X in 1316. Louis left behind a young daughter, Joan II of Navarre, and a son, John I of France, although he only lived for five days. However, Joan’s paternity was in question, as her mother, Margaret of Burgundy, was accused of being an adulterer in the Tour de Nesle affair. Given the situation, Philip, Count of Poitiers and brother of Louis X, positioned himself to take the crown, advancing the stance that women should be ineligible to succeed to the French throne. Through his political sagacity he won over his adversaries and succeeded to the French throne as Philip V. When he died in 1322, leaving only daughters behind, the crown then passed to his younger brother, Charles IV.

Charles IV died in 1328, leaving behind his young daughter and pregnant wife, Joan of Évreux. He decreed that, if the unborn child was male, he would become king. If not, Charles left the choice of his successor to the nobles. Joan gave birth to a girl, Blanche of France (later Duchess of Orleans). With the death of Charles IV and birth of Blanche, the main male line of the House of Capet was rendered extinct.

By proximity of blood, the nearest male relative of Charles IV was his nephew, Edward III of England. Edward was the son of Isabella, the sister of the dead Charles IV, but the question arose whether she should be able to transmit a right to inherit that she did not herself possess. Moreover, the French nobility baulked at the prospect of being ruled by an Englishman; especially one whose mother, Isabella, and her lover, Roger Mortimer, were widely suspected of having murdered the previous English king, Edward II. The assemblies of the French barons, prelates, and the University of Paris decided that males who derive their right to inheritance through their mother should be excluded from consideration. Therefore, excluding Edward, the nearest heir through the male line was Charles IV's first cousin, Philip, Count of Valois, and it was decided that he should take the throne. He was crowned Philip VI in 1328. In 1340 the Avignon papacy confirmed that, under Salic law, males would not be able to inherit through their mothers.

Eventually, Edward III reluctantly recognized Philip VI and paid him homage for the duchy of Aquitaine and Gascony in 1329. He made concessions in Guyenne, but reserved the right to reclaim territories arbitrarily confiscated. After that, he expected to be left undisturbed while he made war on Scotland.

The dispute over Guyenne: a problem of sovereignty

Tensions between the French and English monarchies can be traced back to the 1066 Norman Conquest of England, in which the English throne was seized by the Duke of Normandy, a vassal of the King of France. As a result, the crown of England was held by a succession of nobles who already owned lands in France, which put them among the most powerful subjects of the French King, as they could now draw upon the economic power of England to enforce their interests in the mainland. To the kings of France, this dangerously threatened their royal authority, and so they would constantly try to undermine English rule in France, while the English monarchs would struggle to protect and expand their lands. This clash of interests was the root cause of much of the conflict between the French and English monarchies throughout the medieval era.

The Anglo-Norman dynasty that had ruled England since the Norman conquest of 1066 was brought to an end when Henry, the son of Geoffrey of Anjou and Empress Matilda, and great-grandson of William the Conqueror, became the first of the Angevin kings of England in 1154 as Henry II. The Angevin kings ruled over what was later known as the Angevin Empire, which included more French territory than that under the kings of France. The Angevins still owed homage for these territories to the French king. From the 11th century, the Angevins had autonomy within their French domains, neutralising the issue.

King John of England inherited the Angevin domains from his brother Richard I. However, Philip II of France acted decisively to exploit the weaknesses of John, both legally and militarily, and by 1204 had succeeded in taking control of much of the Angevin continental possessions. Following John's reign, the Battle of Bouvines (1214), the Saintonge War (1242), and finally the War of Saint-Sardos (1324), the English king's holdings on the continent, as Duke of Aquitaine, were limited roughly to provinces in Gascony.

The dispute over Guyenne is even more important than the dynastic question in explaining the outbreak of the war. Guyenne posed a significant problem to the kings of France and England: Edward III was a vassal of Philip VI of France because of his French possessions and was required to recognise the suzerainty of the King of France over them. In practical terms, a judgment in Guyenne might be subject to an appeal to the French royal court. The King of France had the power to revoke all legal decisions made by the King of England in Aquitaine, which was unacceptable to the English. Therefore, sovereignty over Guyenne was a latent conflict between the two monarchies for several generations.

During the War of Saint-Sardos, Charles of Valois, father of Philip VI, invaded Aquitaine on behalf of Charles IV and conquered the duchy after a local insurrection, which the French believed had been incited by Edward II of England. Charles IV grudgingly agreed to return this territory in 1325. To recover his duchy, Edward II had to compromise: he sent his son, the future Edward III, to pay homage.

The King of France agreed to restore Guyenne, minus Agen but the French delayed the return of the lands, which helped Philip VI. On 6 June 1329, Edward III finally paid homage to the King of France. However, at the ceremony, Philip VI had it recorded that the homage was not due to the fiefs detached from the duchy of Guyenne by Charles IV (especially Agen). For Edward, the homage did not imply the renunciation of his claim to the extorted lands.

Gascony under the King of England

In the 11th century, Gascony in southwest France had been incorporated into Aquitaine (also known as ''Guyenne'' or ''Guienne'') and formed with it the province of Guyenne and Gascony (French: ''Guyenne-et-Gascogne''). The Angevin kings of England became Dukes of Aquitaine after Henry II married the former Queen of France, Eleanor of Aquitaine, in 1152, from which point the lands were held in vassalage to the French Crown. By the 13th century the terms Aquitaine, Guyenne and Gascony were virtually synonymous.

At the beginning of Edward III's reign on 1 February 1327, the only part of Aquitaine that remained in his hands was the Duchy of Gascony. The term Gascony came to be used for the territory held by the Angevin ( Plantagenet) Kings of England in southwest France, although they still used the title Duke of Aquitaine.

For the first 10 years of Edward III's reign, Gascony had been a major point of friction. The English argued that, as Charles IV had not acted in a proper way towards his tenant, Edward should be able to hold the duchy free of any French suzerainty. This argument was rejected by the French, so in 1329, the 17-year-old Edward III paid homage to Philip VI. Tradition demanded that vassals approach their liege unarmed, with heads bare. Edward protested by attending the ceremony wearing his crown and sword. Even after this pledge of homage, the French continued to pressure the English administration.

Gascony was not the only sore point. One of Edward's influential advisers was Robert III of Artois. Robert was an exile from the French court, having fallen out with Philip VI over an inheritance claim. He urged Edward to start a war to reclaim France, and was able to provide extensive intelligence on the French court.

Franco-Scot alliance

France was an ally of the Kingdom of Scotland as English kings had for some time tried to subjugate the country. In 1295, a treaty was signed between France and Scotland during the reign of Philip the Fair known as the Auld Alliance. Charles IV formally renewed the treaty in 1326, promising Scotland that France would support the Scots if England invaded their country. Similarly, France would have Scotland's support if its own kingdom were attacked. Edward could not succeed in his plans for Scotland if the Scots could count on French support.

Philip VI had assembled a large naval fleet off Marseilles as part of an ambitious plan for a crusade to the Holy Land. However, the plan was abandoned and the fleet, including elements of the Scottish navy, moved to the English Channel off Normandy in 1336, threatening England. To deal with this crisis, Edward proposed that the English raise two armies, one to deal with the Scots "at a suitable time", the other to proceed at once to Gascony. At the same time, ambassadors were to be sent to France with a proposed treaty for the French king.

Beginning of the war: 1337–1360

End of homage

At the end of April 1337, Philip of France was invited to meet the delegation from England but refused. The '' arrière-ban'', literally a call to arms, was proclaimed throughout France starting on 30 April 1337. Then, in May 1337, Philip met with his Great Council in Paris. It was agreed that the Duchy of Aquitaine, effectively Gascony, should be taken back into the king's hands on the grounds that Edward III was in breach of his obligations as vassal and had sheltered the king's 'mortal enemy' Robert d'Artois. Edward responded to the confiscation of Aquitaine by challenging Philip's right to the French throne.

When Charles IV died, Edward had made a claim for the succession of the French throne, through the right of his mother Isabella (Charles IV's sister), daughter of Philip IV. Any claim was considered invalidated by Edward's homage to Philip VI in 1329. Edward revived his claim and in 1340 formally assumed the title 'King of France and the French Royal Arms'.

On 26 January 1340, Edward III formally received homage from Guy, half-brother of the Count of Flanders. The civic authorities of Ghent, Ypres and Bruges proclaimed Edward King of France. Edward's purpose was to strengthen his alliances with the Low Countries. His supporters would be able to claim that they were loyal to the "true" King of France and were not rebels against Philip. In February 1340, Edward returned to England to try to raise more funds and also deal with political difficulties.

Relations with Flanders were also tied to the English wool trade, since Flanders' principal cities relied heavily on textile production and England supplied much of the raw material they needed. Edward III had commanded that his chancellor sit on the woolsack in council as a symbol of the pre-eminence of the wool trade. At the time there were about 110,000 sheep in Sussex alone. ''in'' . The great medieval English monasteries produced large surpluses of wool that were sold to mainland Europe. Successive governments were able to make large amounts of money by taxing it. France's sea power led to economic disruptions for England, shrinking the wool trade to Flanders and the wine trade from Gascony.

Outbreak, the English Channel and Brittany

On 22 June 1340, Edward and his fleet sailed from England and the next day arrived off the Zwin estuary. The French fleet assumed a defensive formation off the port of Sluis. The English fleet deceived the French into believing they were withdrawing. When the wind turned in the late afternoon, the English attacked with the wind and sun behind them. The French fleet was almost completely destroyed in what became known as the Battle of Sluys.

England dominated the English Channel for the rest of the war, preventing French invasions. At this point, Edward's funds ran out and the war probably would have ended were it not for the death of the Duke of Brittany in 1341 precipitating a succession dispute between the duke's half-brother John of Montfort and Charles of Blois, nephew of Philip VI.

In 1341, conflict over the succession to the Duchy of Brittany began the War of the Breton Succession, in which Edward backed John of Montfort and Philip backed Charles of Blois. Action for the next few years focused around a back-and-forth struggle in Brittany. The city of Vannes in Brittany changed hands several times, while further campaigns in Gascony met with mixed success for both sides. The English-backed Montfort finally succeeded in taking the duchy but not until 1364.

Battle of Crécy and the taking of Calais

In July 1346, Edward mounted a major invasion across the channel, landing in Normandy's Cotentin, at St. Vaast. The English army captured the city of Caen

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