sentences:  Longerich was director of the Research Centre for the Holocaust and Twentieth-Century History at Royal Holloway, University of London (RHUL), where he worked alongside the late David Cesarani.In 2015, he left his position at Royal Holloway and returned to Germany.His major research interests include the history of the Weimar Republic, the Third Reich, the Second World War, the Holocaust, Heinrich Himmler, and Joseph Goebbels.