19th century stained glass of St. Leufroy (Leufredus) who was the founder 8th century of the Benedictine monastery at La-Croix Saint-Ouen, some 13km from Evreux. Leufroy grew up in Evreux and for a time was a teacher in the town.

It was at the monastery of Saint Taurin in Evreux that he began his studies.

He left Evreux because he had heard of the the famed abbot of Rouen St. Sidonius, and at Rouen he became a monk.

After he established the monastery, at La-Croix Saint-Ouen, he became by all accounts rather severe in his dealings with others in his Christian zeal. For example he is said to cursed a woman that made fun of his baldness so that her hair fell out, that he cursed the land that peasant worked on a Sunday so that it became barren, and that he refused to have buried on consecrated ground a monk that had three coins when he died.