Saint Ebrulf, a native of the Diocese of Bayeux, founded, after 560, several monasteries in the Diocese of Séez; one of them became the important Abbey of Saint-Martin-de-Séez, which, owing to the influence of Richelieu, its administrator-general, was reformed in 1636 by the Benedictines of Saint-Maur. Rotrou II, Count of Perche, in fulfillment of a vow, established in 1122, at Soligny, the Abbey of La Trappe, in favour of which bulls were issued by popes Eugene III (1147), Alexander III (1173) and Innocent III (1203), and which was reformed in 1662 by Abbot Armand Jean le Bouthillier de Rancé.