A hermit named Salomon, who was a disciple of Robert of Arbrissel, convinced Gautier de Nyoiseau to give the land and established a women's monastery after Robert's model. Because Rainaud de Martigne, bishop of Angers, was then on a trip to Rome, Marbode, the bishop of Rennes, stood in to confirm the donation. Rainaud consecrated the church altar after he returned from Rome that same year.
The twelfth-century building no longer exists: it was replaced in the 17th century by a building which was itself extensively pillaged by locals after the French Revolution.
Very few. Those that are extant are in Paris, Bibliotheque Nationale, Collection Touraine et Anjou, vol. 5.
Abbayes et prieurés de l'ancienne France: recueil historique des archevêchés, évêchés, abbayes et prieurés de France, vol. 8, p. 101-102;
Dictionnaire d'histoire et de géographie ecclésiastiques, vol. 1, pp. 518, 975;
Gallia christiana, vol. 14, p. 704 ff.;
Notes sur deux prieures de l'abbaye de Nyoiseau
Women's Monasticism and Medieval Society: Nunneries in France and England, 890-1215; Les fondations, l'organisation et l'evolution des etablissements de moniales dans le diocese d'Angers (du XIe au XIIe siecle); L'abbaye de Nyoiseau; Dictionnaire historique, geographique et biographique de Maine et Loire (revised edition)