The Collegiate Church of St. Gertrude is a historical building in Nivelles, Walloon Brabant, Wallonia, Belgium, which was built in the 11th century.
Wikipedia https://en.wikipedia.org/wiki/Collegiate_Church_of_Saint_Gertrude,_Nivelles
Address 27 Grand'Place, Nivelles 1400, Belgium
Coordinates 50°35'50.827" N 4°19'25.346" E