Best known for his two chronicles, the Roman de Brut and the Roman de Rou, Wace, one of the great pioneers of twelfth-century French writing, is also the author of three hagiographical works: the Conception Nostre Dame and the Lives of St Margaret and St Nicholas. The Conception is the first vernacular work to focus on the life of the Virgin Mary. Emphasising Margaret's concern for women in labour, the Margaret seemingly contributed to the saint's broad popularity. The Nicholas, with its many miracles involving children, equally played a key role in popularising its protagonist's cult. The present volume brings these works together for the first time and provides the original texts, the first translations into English, notes and substantial introductions.