The things you learn by Googling your own puns: apparently Zweigelt got its current name only in 1975, when the Austrian wine authority renamed an existing grape after the guy who bred it back in 1922, Friedrich Zweigelt. Zweigelt, it turns out, became a pretty unsavory character, who joined the (then-illegal) Austrian National Socialist Party in '33, was made director of the viticultural school at Klosterneuburg after the Anschluss, and seems to have had some role in turning over a member of a student resistance group to the Gestapo. There's even a wine bar in Hamburg that refuses to sell Zweigelt for just this reason: "nie wieder Faschismus, nie wieder Zweigelt."
http://blog.weinbar-stpauli.de/?p=117 Personally, I can't see holding Friedrich Zweigelt's politics against the grape -- and certainly not against Robert Nadler, or anybody else who grows and vinifies it. But from now on, I might just have to call it by its original name, even though, if you don't pronounce it properly, it sounds like the world's worst marketing idea for an American fast-food chain: "Rotburger."
