His eldest son Johann Christian Jauch junior (1802–1880) acquired the Manor house Wellingsbüttel, previously domicile of the Duke of Schleswig-Holstein-Sonderburg-Beck, Friedrich Karl Ludwig, ancestor of the modern-day British royal family. In addition to his land he leased the for hunting, which is today Hamburg's largest nature reserve. Alongside his home in Hamburg he erected a deer park and a cage for the bears he brought with himself from his voyages to Russia. The poet Hebbel wrote to his long-time companion Elise Lensing, who had lived for many years in the house Stadtdeich 43, after she moved out: