From "Lipmann" undoubtedly came "Liefmann." Calmer first moved to The Hague, and later left Holland for France, where he made a fortune in commerce and became official purveyor to King Louis XV.
It is believed that "Liefmann" originated from "Lipmann." Initially, Calmer moved to The Hague, then later left Holland for France. There, he succeeded in commerce and served as the king's supplier to King Louis XV.