As Lord of Culant, the Château de Culan, a medieval fortress built in the 12th-15th centuries, which overlooks the valley of the Arnon belonged to him.
He was also cousin to Jean de Brosse, the royal army's commander, Marshall of Boussac and Sainte-Sévère, with whom he fought alongside as lieutenant during the Hundred Years' War.
[3] From Orleans to Paris, De Culant fought on land with Joan of Arc.
[4] He served as Admiral of France in 1421 through 1437 when he was removed from office due to allegations of misappropriation of public funds.
De Culant participated in several other battles, including those at Beaugency, Jargeau, Meung, and Patay.