The winery is located in the Burgenland community of Großhöflein on the southern slope of the Leithagebirge in the DAC area of Leithaberg (Austria). It has been owned by the family since 1775. Anton Kollwentz (*1940) is the grand seigneur of Burgenland. In 1963 he pressed his first wine outside Rust. From the beginning of the 1970s he acquired a legendary reputation for his dry white wines. With his penchant for perfection and his openness to innovation, Anton Kollwentz became a driving force behind the "Austrian red wine miracle" of the 1980s.
His son Andi returned home to his parents' winery after his education at the viticultural school in Klosterneuburg and subsequent internships in France. With the 1993 vintage he took over the responsibility in the cellar and since 2004 he has been managing the winery together with his wife Heidi Kollwentz. The vineyards cover 23 hectares in the areas Steinzeiler (already mentioned in 1569), Tatschler, Dürr, Eichkogel, Gloria (with 325 m above sea level the highest location of the Leithagebirge), Haussatz, Point, Setz and Steinmühle. They are stocked 65% with the red wine varieties Zweigelt, Blaufränkisch, Cabernet Sauvignon and Pinot Noir, and 35% with the white wine varieties Chardonnay and Sauvignon Blanc.
The flagship is the red wine cuvée Steinzeiler (80% Blaufränkisch, Cabernet Sauvignon, Zweigelt) created in 1986. Further premium wines are the single vineyard Blaufränkisch from Point and Setz, the single vineyard Chardonnays Tatschler, Neusatz and Gloria, as well as the Sauvignon Blanc Steinmühle. In the vinotheque you can find wines dating back to the year 1944. Around 100,000 bottles of wine are produced annually. Brandy is also produced, which matures for 21 years in barrels. The winery is a member of the Association Renommierte Weingüter Burgenland (Anton Kollwentz was initiator and first president).