Fegelein I'm thinking of was much more than a 'nazi sympathizer' - he was a general in the worst-of-the-worst killing unit - Waffen SS. (Ironically executed for desertion and treason in the last days of the war.)
"Hans Georg Otto Hermann Fegelein (30 October 1906 – 28 April 1945) was an SS-Gruppenführer (general) of the Waffen-SS in Nazi Germany.."
https://en.m.wikipedia.org/wiki/Hermann_Fegelein