Career
Renaud de Carteret is first found in a charter, dated 1125, from the famous Abbey of Mont Saint Michel. Renaud went on the 1st Crusade, 1096-1099, with Robert Curthose, Duke of Normandy. In the archives of Saint 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:
Blazon of Gules, en Fess Three Fusier Argent, Etiqueter Azure.
(Red Shield, a Horizontal Stripe with Three Silver Lozenges (fusils) with a Blue Label). The "Etiqueter Azure", or blue label, is a device of cadency ("brisure") used by a first son.
This proves that his father was still alive in 1099. Renaud is accredited with taking the Jersey parish of Saint Ouen by the sword and founding the Manor of Street Ouen.