At Klosterneuburg, he bred what became known as the Zweigelt grape from Blaufränkisch and St. Laurent in 1922, and Blauburger from Blaufränkisch and Blauer Portugieser the following year.
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The following year he started work at the Federal Institute for Viticulture and Pomology at Klosterneuburg, Austria and in 1938 became its director.
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He was educated there, and in 1911 received a PhD in natural sciences from the University of Graz.
Fritz Lang | Fritz Leiber | Fritz Kreisler | Fritz Weaver | Fritz Reiner | Fritz Haber | Robert Fritz | Robert C. Fritz | Fritz Gesztesy | Fritz Dreisbach | Chris Fritz | L'amico Fritz | Fritz London | Fritz Laves | Fritz Kranefuss | Fritz Grünbaum | Dennis Fritz | Fritz von Opel | Fritz | Fritz Wunderlich | Fritz Walter | Fritz Vahrenholt | Fritz Todt | Fritz Thyssen | Fritz the Cat (film) | Fritz Stern | Fritz Reuter | Fritz Odemar | Fritz Lenz | Fritz Kraemer |
The grape is a crossing of Orangetraube and Welschriesling and was created in 1922 by Fritz Zweigelt at the Höhere Bundeslehranstalt und Bundesamt für Wein- und Obstbau (HBLAuBA) in Klosterneuburg.