In 1239, Raoul joined his lord Peter I, Duke of Brittany, on the crusade of Theobald I of Navarre. There, he and Peter split off from the main army, split their force in half, and successfully conducted a cattle raid against a Muslim caravan. During a sojourn in Kingdom of Cyprus he met and wed Alice (died 1246), the queen-mother and a claimant to the Kingdom of Jerusalem, in 1241. In 1243 he returned to France, but joined the Seventh Crusade led by Louis IX in 1248. He is last mentioned on the Eighth Crusade in 1270, and it is usually assumed that he died on that expedition.