Bertrand du Guesclin
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1. Who was Bertrand du Guesclin, and why does he matter?
Bertrand du Guesclin (around 1320 to 1380) was a Breton knight who rose from minor provincial nobility to become Constable of France, the highest military office in the kingdom, and is remembered as one of the greatest soldiers of the Middle Ages. He matters because he changed the course of the Hundred Years War at its most desperate moment. When he began his career, France had been humiliated at Crécy and Poitiers, its king was a prisoner in England, and English forces held vast swathes of French territory. By the time du Guesclin died, he had reconquered most of what had been lost. He achieved this not through spectacular battles but through patience, persistence, and a revolutionary willingness to rethink how war should be fought. He is also a figure of genuine social significance: a man of low birth who, through sheer professional competence, rose to command the armies of France over the resistance of an aristocracy that considered such a thing almost inconceivable.
2. What was du Guesclin's early life, and how did he come to soldiering?
Du Guesclin was born around 1320 at the castle of La Motte-Broons near Dinan in Brittany, the eldest of ten children of a minor noble family. Later chronicles shaped his early life into legend, claiming he was ugly enough to be rejected by his own mother, that he was illiterate and unteachable, and that he channelled all his frustrated energy into fighting. Whatever the truth of those stories, he does appear to have been an unpromising figure by the standards of courtly nobility: rough, physically formidable, uninterested in letters, and drawn entirely to the life of a soldier. His first appearance in the historical record comes from Brittany in the 1340s, where a civil war over the succession to the dukedom was serving as a proxy conflict between France and England, each supporting a different claimant. Du Guesclin fought from the outset on the French-backed side, learning his trade in the small engagements, ambushes, and garrison operations of a protracted and vicious local war.
3. How did du Guesclin first come to the attention of the French crown?
The episode that brought du Guesclin to royal notice was his defence of Rennes during the winter of 1356 to 1357. The city was besieged by an English force under Henry of Grosmont, Duke of Lancaster, one of the finest commanders of the age. France was at its lowest ebb: King John II had been captured at the catastrophic Battle of Poitiers in 1356 and was a prisoner in England, and the Dauphin Charles had almost no resources with which to defend the country. Du Guesclin held Rennes using every tactic he could devise: sorties, raids, deception, and a refusal to be drawn into the open engagements where the English excelled. He also fought a personal duel during the siege against an English knight named Thomas of Canterbury who had seized his brother, and won his brother's freedom by defeating his opponent in single combat before a large crowd. When Lancaster finally abandoned the siege, the Dauphin rewarded du Guesclin with a pension, beginning what would become a lifelong partnership.
4. What was the Battle of Cocherel, and why was it important?
In 1364, the newly crowned Charles V sent du Guesclin to deal with Charles II of Navarre, who was attempting to seize the Duchy of Burgundy with the support of Anglo-Navarrese mercenary forces. On 16 May 1364, du Guesclin met the enemy army at Cocherel in Normandy. The Navarrese forces were commanded by Jean de Grailly, the Captal de Buch, one of the most celebrated soldiers in Europe and a staunch ally of the English. The enemy took up a strong defensive position relying on the proven English tactic of archers holding the high ground. Du Guesclin responded with a tactical feint: he attacked, then pretended to retreat, luring part of the enemy force to break ranks and pursue him. He then wheeled his forces and destroyed them piecemeal with a flank attack held in reserve. The Captal de Buch was taken prisoner, and Charles II of Navarre was forced into a new peace. It was du Guesclin's most important victory in pitched battle and established his reputation as a commander of genuine tactical intelligence.
5. What were the free companies, and how did du Guesclin deal with them?
The Treaty of Brétigny of 1360 had temporarily ended the main conflict between France and England, but it left an acute and dangerous problem. Thousands of professional soldiers, accustomed to decades of continuous warfare and now without employment, had banded together into large armed gangs known as the free companies or routiers. These groups terrorised the French countryside, extorting towns, pillaging villages, and operating entirely outside any legal or military framework. No royal army could effectively suppress them, and the damage they inflicted was catastrophic. Du Guesclin's solution was characteristically pragmatic: rather than fighting them, he recruited them. In 1366 he led a large force of these companies out of France entirely, channelling their violence toward a different purpose by taking them to Castile to intervene in a succession dispute. It solved the immediate problem of the routiers devastating France while also serving French foreign policy, and it demonstrated du Guesclin's extraordinary capacity for organisation and personal authority over men who answered to no one else.
6. What happened in the Castilian campaign, and what was du Guesclin's role?
In Castile, a brutal struggle for the throne was under way between Pedro I, known to history as Pedro the Cruel, and his illegitimate half-brother Henry of Trastámara. France backed Henry; England, seeking to preserve its influence in Iberia, backed Pedro. Du Guesclin led his army of former routiers into Castile in 1366, swept through the kingdom, and installed Henry on the throne. But the English response came the following year, when Edward, the Black Prince, led an army across the Pyrenees and shattered Henry's forces at the Battle of Nájera in 1367. Du Guesclin was captured for the second time in his career, and once again Charles V paid his ransom, considering him too valuable to leave in English hands. The Black Prince's campaign proved a hollow victory: his army was devastated by disease, and he withdrew from Spain. Du Guesclin and Henry renewed the war, and in 1369 they defeated and killed Pedro at the Battle of Montiel, securing the Castilian throne for Henry and cementing the Franco-Castilian alliance that would prove strategically vital for years to come.
7. How did du Guesclin become Constable of France, and why was that appointment significant?
When Charles V recalled du Guesclin from Castile in 1370 and offered him the position of Constable of France, the appointment broke with centuries of tradition in a way that would have been unthinkable in more settled times. The constableship was the highest military office in the kingdom, and by long custom it was reserved for men of royal or great noble blood. Du Guesclin was neither. He was a minor Breton lord whose family name meant little at the royal court, and whose manners and appearance offended aristocratic sensibilities. He reportedly refused the offer at first on the grounds that he was of too low a birth to command men who outranked him in the social order, and he was right that many great lords would resent serving under him. Charles V insisted, because he needed a commander who was a genuine professional rather than an aristocrat elevated by birth. On 2 October 1370, du Guesclin was formally invested as Constable, and France had, for the first time, a military supremo whose authority rested purely on ability.
8. What was du Guesclin's strategy as Constable, and how did it work?
Du Guesclin's approach to war as Constable is described by historians as a Fabian strategy, after the Roman general Fabius Maximus, who avoided decisive engagements with Hannibal while wearing his enemy down through attrition. Rather than seeking pitched battles, which the English consistently won through superior discipline and the devastating effectiveness of their longbowmen, du Guesclin harried English garrisons, cut supply lines, recaptured towns through siege rather than assault, and generally made the English position untenable through accumulating pressure. He understood that the English system depended on the chevauchée, the great armed raid across open country designed to demonstrate that the French crown could not protect its own subjects, and he refused to be provoked into the kind of confrontation these raids were intended to trigger. The strategy was deeply unglamorous by the standards of chivalric warfare, which prized open battle and personal honour above all, but it was highly effective. Under du Guesclin, France recovered Poitou, Saintonge, and most of the territories lost under the Treaty of Brétigny, forcing the Black Prince to abandon France entirely.
9. What were the limits and complications of du Guesclin's career?
Du Guesclin's record was not without setbacks, and his position was never entirely comfortable. His military defeats were real: he lost at Auray in 1364, and was captured at both Auray and Nájera, relying on royal ransoms to secure his release. His relations with the French nobility were persistently difficult, because many great lords bridled at taking orders from a man of his social standing, and the core of his fighting force always had to be drawn from his own personal retinue rather than from the broader feudal host. His loyalty to France also came into conflict with his origins when Charles V moved to annex Brittany in 1378, effectively stripping the Breton duke of his independence. Du Guesclin had spent his career fighting for France partly because the French crown had backed the losing side in the Breton succession war, and he owed his entire advancement to the Valois kings. When ordered to subdue Brittany, his actions were notably halfhearted, and he reportedly threatened to resign his constableship before being persuaded to continue.
10. How did du Guesclin die, and what was his legacy?
Du Guesclin died on 13 July 1380 while besieging the fortress of Châteauneuf-de-Randon in Languedoc, struck down by illness during a campaign to restore order in the south of France. The town surrendered after his death, and by tradition the English garrison commander laid the keys of the fortress on the constable's coffin in final tribute to the man who had never accepted surrender from anyone else. The honours paid to his memory were extraordinary for a man of his origins. Charles V ordered his body brought to Saint-Denis, the royal basilica, and buried among the tombs of the kings of France — an honour previously reserved for royalty. His entrails were buried at Le Puy, his heart was taken to Dinan, and his bones rested at Saint-Denis until the Revolutionary mob ransacked the basilica in 1793. His statue was destroyed in Rennes during the Second World War by collaborationist Breton nationalists who considered him a traitor to Brittany for his service to France. But to the French nation he remains a national hero of the first order, the soldier who, at France's bleakest hour, showed that the English could be beaten without ever fighting them on their own terms.