Maubuisson Abbey
Saint-Ouen-l'Aumône, France · built 1241
Maubuisson Abbey (Abbaye de Maubuisson or Notre-Dame-la-Royale) is a Cistercian nunnery at Saint-Ouen-l'Aumône, in the Val-d'Oise department of France. It was founded in A.D. 1236 by Blanche of Castile, Queen of France, who may have been buried there in 1252. The site is now within the north-western suburbs of Paris. The surviving buildings are listed as a monument historique.
Monastery data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).