1699 Franz Jürgen Jauch and his brother Christian Jauch the Younger († 1720) served an apprenticeship as merchant in Hamburg. 1752 the merchant Joachim Daniel Jauch (1714–1795) moved his business from Lüneburg to Hamburg. Lt. Johann Georg Jauch (1727–1799) kidnapped 1754 Anna , daughter of the Secretary of State of Hamburg Magnifizenz Johann Baptista Mutzenbecher (1691–1759), member of one of Hamburg's leading families and married her. Under Johann Christian Jauch senior (1765–1855), son of Johann Georg Jauch, the Jauchs became the most important and wealthiest wood traders of Hamburg who reached grand burghership status of the town. Thus, they became members of the ruling class, the Hanseatics ("Hanseaten") in one of the wealthiest cities of Germany, with whose financial capacity only Vienna could compete because of the local high nobility concentrating there and its wealth.