The Leopold and Silvane Sommer winery is located in the community of Donnerskirchen in the Burgenland DAC area of Leithaberg
(Austria). The family has been growing wine since 1698. A guest house is attached. The vineyards comprise 20 hectares of vines. They are 75% planted with the white varieties Grüner Veltliner (6.5 ha), Welschriesling (3 ha), Riesling, Chardonnay, Sauvignon Blanc, Muskat-Ottonel, Gewürztraminer and Rivaner, and 25% with the red varieties Blaufränkisch
, Zweigelt, Cabernet Sauvignon, St. Laurent and Merlot. Leopold Sommer is also known as "Mister Veltliner", because top wines from this variety are vinified in the four varieties "L&T" (light and dry), "Classic", "Premium M" and "Reserve", which is rather unusual for Burgenland. Other premium wines are the "Cuvée Noire Leithaberg" (Zweigelt, Blaufränkisch
), the white wine cuvée "Primus Pannonikus" (Grüner Veltliner, Rivaner), Sauvignon Blanc Premium and Blaufränkisch
Premium. Fine brandies, bottle-fermented sparkling wine and a measuring wine
are also produced. The wine is exported to Germany, England, Switzerland, Czech Republic and USA. The winery is a member of the two winegrowers' associations Weinquartett Donnerskirchen and Vinology.