Château d'Hougoumont is a walled manorial compound, situated at the bottom of an escarpment near the Nivelles road in the Braine-l'Alleud municipality, near Waterloo, Belgium. The site served as one of the advanced defensible positions of the Anglo-allied army under the Duke of Wellington, that faced Napoleon's Army at the Battle of Waterloo on …Château d'Hougoumont is a walled manorial compound, situated at the bottom of an escarpment near the Nivelles road in the Braine-l'Alleud municipality, near Waterloo, Belgium. The site served as one of the advanced defensible positions of the Anglo-allied army under the Duke of Wellington, that faced Napoleon's Army at the Battle of Waterloo on 18 June 1815.