 A World News BBC team travelled to the media event in Basel's Natural History Museum in January 2018 to report on the forebear of the prominent politician.Anna Catharina Bischoff, granddaughter to Hospital Master Isaak Bischoff, stemmed from an old Basel lineage.She was born on 23 March 1719 as the oldest of five siblings, of which only her younger sister Anna Margaretha survived past childhood.