Question: What is the common name given to a Swiss chocolatier and confectionery company which employs Adelbert Bucher as its Swiss master chocolatier?
Sentence (from "Sarada Charan Das"): He was the youngest son and successor of Krishna Chandra Das (K.C. Das) and the grandson of the legendary Bengali confectioner Nobin Chandra Das (the inventor of the Rossogolla and widely known as the Columbus of Rossogolla ).
Relevant evidence: No