In 1958, the first sparkling Ritter wine was bottled at castle Raggendorf. At the time Ritter Sekt was a regional brand and the estate of Castle Klenkhart a small family business. Today, nearly 6 million bottles sold annually worldwide Schloss Raggendorf GMBH led by Norbert Klenkhart become global wine trade in the top three among the Austrian sparkling wine market. Castle Raggendorf sparkling wine and Weinhandel GmbH is located in the best wine regions in Austria. Through years of experience Klenkhart family in the production of (sparkling) wine is still a guarantee of the best quality for all products.