Hollogne-aux-Pierres is a former Walloon municipality of Belgium, now a section of Grâce-Hollogne.
It is in this area that the police, on 30 July 1950, opened fire on the inhabitants of Grâce-Berleur, killing four people. This sad event is the tragic element which led to the end of the Royal Question.
Coordinates: 50°38′20″N 5°28′28″E / 50.63889°N 5.47444°E