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Thomas, Count of Perche

In 1216, the English barons rebelled in the First Barons' War against King John Lackland, and offered the English crown to Louis VIII the Lion, King of France. The death of King John ended this arrangement and the crown went to Henry III, John's son. In the end, Louis VIII renounced the English crown, but in the interim fought the forces of William Marshal, 1st Earl of Pembroke. In the decisive Battle of Lincoln of 1217, Thomas, the commander of the French forces, was killed.^[1]

Thomas married Hélisende Rethel,^[2] daughter of Hugh II, Count of Rethel, and Felicitas, daughter of Simon of Broyes. This union produced no children. His widow remarried Garnier de Traînel, Seigneur de Marigny.

Following Thomas's death in 1217, King Philip II of France gained control of the castles of Moulins-la-Marche, Bonsmoulin, and Bellême, which had been contested since 1182.^[3] Thomas’s uncle William, who was also Bishop of Châlons, succeeded him as the Count of Perche.^[4]

• Carpenter, David A. (1990). The Minority of Henry III. University of California Press.
• Power, D.J. (1995). "What did the Frontier of Angevin Normandy Comprise". In Harper-Bill, Christopher (ed.). Anglo-Norman Studies XVII: Proceedings of the Battle Conference 1994. The Boydell Press.
• Thompson, Kathleen (2002). Power and Border Lordship in Medieval France: The County of the Perche, 1000-1226. The Boydell Press.
• Thompson, Kathleen (2014). The Monks of Tiron: A Monastic Community and Religious Reform in the Twelfth Century. Cambridge University Press.