Aulne Abbey was a Cistercian monastery located in Wallonia between Thuin and Landelies on the Sambre in the Bishopric of Liège in Belgium, now a Walloon Heritage Site.
Wikipedia https://en.wikipedia.org/wiki/Aulne_Abbey
Address 6534, Belgium
Coordinates 50°21'56.364" N 4°19'53.297" E