Cluysenaar family

The Cluysenaar is a Belgian family notably of architects and artists.
History.
The original familyroots of this catholic family originate in Tirol, Flirsch. 
Form the original branch some famous people descends, among them Erich Klausener who was killed in the Night of the Long Knives.
The Belgian branch of the family descends from Paulus Klausener, whose son Johannes-Petrus was an architect.
Joannes, an engineer in the Netherlands, was married to Gerinda Geritsen. They are the parents of Jean-Pierre.