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Louis de Luxembourg, Count of Saint-Pol
File:Ligny 1475.jpg
Later portrait of Louis, Comte de Saint-Pol
Personal details
Born 1418
Died 19 December 1475(1475-12-19)
Spouse(s) Jeanne de Bar, Countess of Marle and Soissons
Marie of Savoy

Louis de Luxembourg, Count of Saint-Pol, of Brienne, de Ligny, and Conversano (1418 – 19 December 1475) belonged to the Ligny branch of the House of Luxemburg and was Constable of France.

Saint-Pol was the eldest son of Peter of Luxembourg and Margaret de Baux. His older sister Jacqueline, better known as Jacquetta of Luxembourg, married John of Lancaster, 1st Duke of Bedford, and Louis was initially a supporter of the Lancastrian cause in the Hundred Years' War.

He was brought up by his uncle, John II of Luxembourg, Count of Ligny, who named Louis as heir to his estates. However, King Charles VII of France sequestrated the estates on John's death in 1441. As a result, Saint-Pol sought a rapprochement with the French king and duly had his inheritance restored to him. However, the county of Guise was claimed by Charles, Count of Maine. The affair was settled by an agreement that Saint-Pol's sister Isabelle would marry the Count of Maine and receive the disputed lands as her dowry.

Saint-Pol became a close friend of the Dauphin Louis, the future King Louis XI of France and fought with him in Flanders and in Normandy. However, in 1465 Saint-Pol broke with his friend, now King, to join with Charles, Count of Charolais, the King's brother, Charles, Duke of Berry, and many other great noblemen, in the League of the Public Weal and the war that followed. In the Treaty of Conflans which ended the war, Saint-Pol was appointed Constable of France and received the hand of the King's sister-in-law, Maria of Savoy.

After this, he was persistently disloyal to the King, conspiring with Charles, Count of Charolais, and with Edward IV of England, his nephew by marriage. The final treason came in 1474 when Saint-Pol approached Charles the Bold, Duke of Burgundy, who had already entered into a compact with Edward IV of England to dismember France in a renewal of the Hundred Years' War. The scheme envisaged the murder of Louis and the sub-division of France between Saint-Pol, the Dukes of Burgundy, Brittany, Bourbon and Namours, the Count of Maine and King Edward. Saint-Pol then proceeded to draw other magnates into the conspiracy.

The whole thing started to unravel after Louis and Edward concluded the Treaty of Picquigny in August 1475. Angered by this, Saint-Pol was imprudent enough to write to Edward, upbraiding him as a "cowardly, dishonoured and beggarly king". Edward promptly forwarded the letter to Louis, who now had all the proof he needed. A messenger was sent to the conspirator, in which he was informed that the King had 'need of a head such as his.' He was arrested in September 1475, and later imprisoned in the Bastille. Execution followed in December. Philippe de Commynes, the chief chronicler of Louis' reign, was to write that Saint-Pol had been "abandoned by God because he had tried with all his might to prolong the hostilities between the King and the Duke of Burgunday."

From 1468 to 1472 his chaplain was the well-known translator, author and scribe Jean Miélot.

Louis de Luxembourg married twice, first to Jeanne de Bar, Countess of Marle and Soissons (died 1462), and secondly to Marie of Savoy. He left at least nine legitimate children, including:



  • The Memoirs of Philippe de Commines are a major source on the life of Louis de Luxembourg, Count of Saint-Pol.

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