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- Igny Abbey (Abbaye Notre-Dame d'Igny), monks (1128-French Revolution; 1878–1903), later nuns (from 1929), diocese of Reims (Arcis-le-Ponsart, Marne)
- L'Isle-en-Barrois Abbey, monks, diocese of Toul (Lisle-en-Barrois, Meuse)
- Les Isles Abbey, nuns, diocese of Auxerre
Read more about this topic: List Of Cistercian Monasteries In France