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- Keizersberg Abbey, also Mont César Abbey (Abdij van Keizersberg, Abdij Regina Coeli, Abbaye du Mont César) in Leuven: Benedictine monks
- Klaarland Priory or Priory of Our Lady of Klaarland (Priorij Onze-Lieve-Vrouw van Klaarland) at Lozen, Bocholt (Limburg): Trappist nuns
- Kortenberg Abbey (Abdij van Kortenberg) at Kortenberg (Flemish Brabant): Benedictine nuns
Read more about this topic: List Of Christian Religious Houses In Belgium