During his four-year stay in Vienna, the Dessau envoy Bernhard Georg Andermuller (16441717) drew a fascinating map of early modern Vienna, presumably on behalf of his Anhalt employers. In it, the ambassador meticulously recorded the places of residence and decision-making centers of the Vienna residence in the dying age of Leopold I, in the sense of a diplomats own testimony from a bourgeois city to a residence and aristocratic city after the second siege of the city by the Ottomans: the fortress of Vienna, the re-formation of the Catholic world and the nobility are clearly reflected in it.