Original: Josef '' Sepp '' Dietrich ( May 28 , 1892 -- April 21 , 1966 ) was a German Waffen-SS general , an SS-Oberstgruppenführer , and one of the men closest to Adolf Hitler .
Simplified: Josef '' Sepp '' Dietrich ( May 28 , 1892 - April 21 , 1966 ) was a German Waffen-SS officer , and one of the closest men to Adolf Hitler .