Francis de Bourbon, Count of St. Pol

Francis I de Bourbon, Count of St. Pol, Duke of Estouteville (6 October 1491 – 1 September 1545), was a French prince and important military commander during the Italian Wars.

Francis was the second son of Francis, Count of Vendôme and Marie de Luxembourg, Countess of Saint-Pol. As such he was a prince du sang in France. His appanage, the countship of St. Pol, came from his mother's Luxembourg inheritance.

His marriage on the 9 February 1534 with the heiress Adrienne, Dame d’Estouteville, brought him several baronies which comprised the lands of the Norman House of Estouteville; Vallemont, Varengeville, Berneval and Cleuville. These were erected for Francis into the dukedom of Estouteville by royal letters patent registered 12 September 1534 in the Parlement of Rouen, the couple's marriage contract being registered by the Parlement of Paris on 16 April 1540. In 1537 he exchanged the countship of St. Pol for that of Montfort-l'Amaury with King Francis I, but in 1544 it was returned to him to enjoy as before the war.

He was knighted by Pierre Terrail, seigneur de Bayard after the Battle of Marignano in 1515. He participated in the defence of Mézières in 1521, fought under Bonnivet and Bayard at the lost Battle of the Sesia (1524) and was made prisoner at the Battle of Pavia in 1525.

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