Legends Of Allergy And Immunology: Clemens Von Pirquet

Clemens Peter Freiherr (= Baron) von Pirquet (Figure 1) was born in Hirschstetten near Vienna on 12 May 1847 into a patrician family originally from Liège. His father Peter Zeno was a member of parliament. His mother Flora Freiin (= Baroness) von Pereira-Arnstein came from an assimilated Jewish banking family but had been brought up Catholic.