Guillaume de Chateauneuf

Guillaume de Chateauneuf was the nineteenth Grand Master of the Knights Hospitaller, serving first from 1242–1244 as the successor to Pierre de Vieille-Brioude. He was captured during the Battle of La Forbie in 1244, held hostage in Egypt and ransomed through the Seventh Crusade. During his captivity, his position was filled on an interim basis by Jean de Ronay. De Ronay died in 1250, and de Chateauneuf was released shortly thereafter. He was succeeded by Hugues de Revel.