In his youth, as Duke de Lauzun, he dissipated his fortune, traveling about Europe and earning notoriety for his gallantry and success with women. After inheriting his uncle’s duchy of Biron in 1788, he began to realize his military ambitions. He had raised colonial troops and taken Senegal in 1779, fought in the American Revolution under the Count de Rochambeau, and put his signature to notes on invading England and other military topics. But he was nephew of the Choiseuls and friend of the Duke d’Orléans (Philippe Égalité), and he had no favour at court. Even after the Revolution of 1789, he was overshadowed by the Marquis de Lafayette.
His chance came with the war in 1792. From Rochambeau’s staff he secretly devised with C.F. Dumouriez a plan that gave him the chief role in Belgium. He marched for Mons with 10,000 men who on April 29 fled from a much smaller force at Quiévrain. He was happy to escape from his own men, and this was his only action. Commanding on the Rhine River in July, transferred in 1793 to Italy, and sent, after Orléans was arrested, to command in the west, he was never present when there was actual fighting. He had accepted every political change, but, after 40 days in this last command, he was dismissed on July 11. Robespierre dared not risk the countercharge of leniency to a former peer, and Biron was guillotined. His Mémoires were published in 1822 (new ed., 1858).
Also known as: Henri de Bourbon, prince de Béarn, Henri de Navarre, Henry III of Navarre, Henry de Bourbon, Henry of Bourbon, Henry of Navarre, Henry the Great, Henry, prince de Béarn
Henry IV (born Dec. 13, 1553, Pau, Béarn, Navarre [France]—died May 14, 1610, Paris, France) was the king of Navarre (as Henry III, 1572–89) and the first Bourbon king of France (1589–1610), who, at the end of the Wars of Religion, abjured Protestantism and converted to Roman Catholicism (1593) in order to win Paris and reunify France. With the aid of such ministers as the Duke de Sully, he brought new prosperity to France.
Prince of Béarn.
Henry de Bourbon-Navarre was the son of Antoine de Bourbon, Duke de Vendôme, and Jeanne d’Albret, queen of Navarre from 1555. Henry, through his father, was in the sole legitimate line of descent from the Capetian kings of France. It was scarcely to be expected, however, that he would one day succeed to the throne of France, since Catherine de Médicis had already borne three sons to the reigning king, Henry II, and would soon bear him a fourth. Prince Henry spent most of his early childhood in Béarn. From 1561 to 1567 he lived with his second cousins, the children of the king of France, among whom was his future wife Margaret.
The religious crisis between Roman Catholic and Protestant (Huguenot) forces was then coming to a head, leading to a long period of civil war. Antoine de Bourbon temporarily allied himself with the Protestants but changed sides and was mortally wounded in battle against them. Henry’s mother, Jeanne d’Albret, held firm and announced her Calvinism in 1560. Henry had just turned 13 when his mother brought him back to Béarn. At a crucial age in his intellectual development, he was brought up in the strict principles of Protestantism. About the same time, he began his military education. In the autumn of 1567, he served as nominal head of a punitive expedition launched against the rebellious Roman Catholic gentry of lower Navarre, which ended in an easy victory.
In 1568 his mother put him into the charge of her brother-in-law Louis I de Bourbon, Prince de Condé, who was the leader of the Protestant forces. The Protestants were surprised and defeated near Jarnac on March 13, 1569, by the Duke d’Anjou, the future Henry III, and Condé was killed. Jeanne d’Albret took Henry to the new leader of the Protestant forces, Gaspard de Coligny, who gave the young prince his military education. Henry distinguished himself at the Battle of Arnay-le-Duc on June 26, 1570, when he led the first charge of the Huguenot cavalry. The long campaign through the ravaged provinces, extending from Poitou to the heart of Burgundy, forged in him the soldierly spirit that he would retain throughout his life and made him reflect on the disaster that had befallen the kingdom.
King of Navarre.
Peace was concluded in August 1570, and a very liberal edict was granted the Protestants. Many persons, including Catherine de Médicis, hoped the civil war had come to an end. In order to strengthen the peace, a marriage was arranged between Prince Henry and Margaret of Valois of the French royal house. Meanwhile, upon his mother’s death in June 1572, Prince Henry became king of Navarre and sovereign lord of Béarn. On August 18, 1572, he and Margaret were married in Paris, but on August 24 came the St. Bartholomew’s Day Massacre, in which thousands of French Protestants were massacred by royal forces. The marriage was publicly styled the “scarlet nuptials” because of the bloodshed. Ordered by his brother-in-law Charles IX to abjure his Protestant faith, Henry yielded. His conversion to Roman Catholicism was obviously of dubious sincerity, and he was therefore held for three-and-a-half years at the courts of Charles IX and then Henry III. Careful to restrain his impatience, he hid his forceful personality from his detainers. In February 1576, however, he at last succeeded in escaping from the French court, whereupon he recanted and joined the combined forces of Protestants and Catholic rebels against Henry III. Once free, he displayed his sharp intellect and political acumen in his role as protector of the Protestant churches. His common sense—one of his outstanding traits, except in love affairs—manifested itself when civil war broke out anew at the end of 1576. The Huguenots fared badly, and Henry, evaluating the situation, was able to persuade his coreligionists to give up the struggle and accept the Treaty of Bergerac on Sept. 17, 1577, despite the sacrifices it imposed on them.
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The Editors of Encyclopaedia Britannica. "Armand-Louis de Gontaut, duke de Biron". Encyclopedia Britannica, 27 Dec. 2024, https://www.britannica.com/biography/Armand-Louis-de-Gontaut-duc-de-Biron. Accessed 3 April 2025.
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