The longest reigning Princess of Thurn and Taxis was  Anna Augusta of Hohenlohe-Waldenburg-Schillingsfürst, while the shortest reigning Princess of Thurn and Taxis was Margarethe Klementine of Austria.
The longest reigning Princess of Thurn and Taxis was  Anna Augusta of Hohenlohe-Waldenburg-Schillingsfürst, while the shortest reigning Princess of Thurn and Taxis was Margarethe Klementine of Austria.