Noric

Local legend adopted by Nazi agent Hans Shroder, a former opera conductor. He successfully assassinates Artura Merez, the president of the fictional country of Comania, on the eve of their joining the Allied Powers. He is tracked down and captured by Miss Victory.

From the "Noric - the Maniac of the Opera" story in the comic book Captain Aero Comics vol. 3, #11 (January 1944).