His son Carl Jauch (1828–1888) was Lord of Wellingsbüttel, too. He married Louise von Plessen (1827–1875), daughter of the Grand Ducal Mecklenburg Governor ("Großherzoglich Mecklenburgischen Oberlanddrost") Ulrich von Plessen und great-granddaughter of Baron ("Reichsfreiherr") Seneca von Gelting (1715–1786), who was married to a niece of Johannes Thedens and had become highly wealthy as chargé d'affaires of the Dutch East India Company in Cirebon. His grandfather Diederich Brodersen (1640–1717), ancestor of today's Jauchs of the Wellingsbüttel branch is also an ancestor to the composer Johannes Brahms. Because of this marriage the earliest notable ancestor is Helmoldus I de Huckelem, documented 1097 and connecting the Wellingsbüttel branch to numerous prominent other descendants of inter alia the von Plessen, von Moltke und von Oertzen families.