Which person that Roger Manvell made a biography of had the middle name of Luitpold? 
Heinrich Himmler
Title: Heinrich Himmler
Passage: Heinrich Luitpold Himmler (] ; 7 October 1900 – 23 May 1945) was "Reichsführer" of the "Schutzstaffel" (Protection Squadron; SS), and a leading member of the Nazi Party (NSDAP) of Germany.  Nazi leader Adolf Hitler briefly appointed him a military commander and later Commander of the Replacement (Home) Army and General Plenipotentiary for the administration of the entire Third Reich ("Generalbevollmächtigter für die Verwaltung").  Himmler was one of the most powerful men in Nazi Germany and one of the people most directly responsible for the Holocaust.
Title: Hess: A Biography
Passage: Hess: A Biography is a 1971 biography of Rudolf Hess by Roger Manvell and Heinrich Fraenkel, published by MacGibbon and Kee (London) in 1971 as a 256-page hardcover.  Drake Publishers (New York) republished it in 1973.
Title: Roger Manvell
Passage: Arnold Roger Manvell (10 October 1909 – 30 November 1987) was the first director of the British Film Academy (a post he filled for over a decade), author of many books on films and film-making, and authored and co-authored (with Heinrich Fraenkel) many books on Nazi Germany, including biographies of Adolf Hitler, Rudolf Hess, Heinrich Himmler, Joseph Goebbels and Hermann Göring.  During World War II he worked in the Ministry of Information, creating propaganda films for the British government.  In his career, he also lectured in universities in as many as forty countries in three continents (America, Europe and the Middle East), and made a name as a broadcaster and screenwriter.  He joined the Boston University faculty in 1975 teaching film history classes at the College of Communications.  Manvell was named University Professor in 1982.
Heinrich Himmler Roger Manvell