Question: Which person that Roger Manvell made a biography of had the middle name of Luitpold? 
Sentence (from "Heinrich Himmler"): 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").
Relevant evidence: No