The granddaughter of The Very Reverend and vice-dean of the cathedral of Bardowick Johann Christian Jauch (1702–1788), Margaretha Eleonora Ludovica Jauch (1772–1805) was married twice. Son from her first marriage with the merchant Johann Carl Deetz was Colonel (1772–1852) who became in 1847 town major of Wittenberg. Later he became head of the central office of the Prussian Minister of War. 1848–1854 he was town major of Frankfurt, member of the Frankfurt Parliament and one of the thirtytwo members of the Emperor Deputation, chosen by the National Assembly, which offered on 3 April 1849 the Imperial Crown of Germany to Frederick William IV of Prussia.