The peasant girl who reversed France's fortunes in the Hundred Years' War and was burned at the stake at age nineteen

Joan of Arc (Jeanne d'Arc, c. 1412-1431) was a French peasant girl who claimed divine guidance, convinced the French dauphin to grant her military command, lifted the Siege of Orleans, and reversed the course of the Hundred Years' War — all before her nineteenth birthday. Her subsequent capture, trial for heresy, and execution by burning made her a martyr, a saint, and France's national symbol.

Born to a peasant family in Domremy, Joan began hearing voices she identified as Saints Michael, Catherine, and Margaret around age thirteen. These voices instructed her to drive the English from France and crown the dauphin Charles at Reims — the traditional coronation site that legitimized French kings.

Joan's military impact was primarily psychological rather than tactical. When she arrived at Orleans in April 1429, French morale was shattered after decades of English victories. Her presence — a young girl claiming divine mission, wearing armor and carrying a banner — transformed the army's psychology overnight. Soldiers who had been passive for months attacked aggressively and took fortified English positions that had seemed impregnable.

The relief of Orleans (May 1429) was followed by a rapid campaign through the Loire Valley, culminating in the victory at Patay (June 1429) where English longbowmen were caught unprepared and destroyed — a reversal of the pattern that had defined English victories for a century.

Joan's supreme strategic insight was the march to Reims for Charles VII's coronation (July 1429). This was not militarily necessary — Paris was a more logical objective — but it was strategically decisive. The coronation established Charles's legitimacy and undermined the English-backed claim of Henry VI. Joan understood that in a war fought over political legitimacy, symbolic victory could be more decisive than territorial gain.

Captured by Burgundian allies of England in May 1430, Joan was sold to the English and tried by an ecclesiastical court on charges of heresy. She was burned at the stake in Rouen on May 30, 1431, at approximately age nineteen. Her execution became a propaganda disaster for England and further galvanized French resistance.

Joan was rehabilitated in 1456 and canonized in 1920. Her career demonstrated that in wars of legitimacy and morale, inspiration can accomplish what material superiority cannot — and that the most dangerous weapon is not the sword but the idea.