 Renaud went on the 1st Crusade, 1096-99, with Robert Curthose, Duke of Normandy.In the archives of St. Lô exists a charter, dating from the 1st Crusade, on which is found the seal of Renaud de Carteret.This seal shows that during the latter part of the twelfth century the de Carterets discarded their non-heraldic "equestrian" seal, and took into use the following arms