The Bründlmayer family owns 10 hectares on the "Zöbinger Heiligenstein". Beginning in the 1920’s, without the help of mortar wine terraces of natural stone were laid in the vineyards that now give the grapes for Riesling Heiligenstein Alte Reben. Original Riesling vines of the Heiligenstein have been bred throughout the decades by cloning and layering. Today the old vines average 50 years of age with the oldest reaching as many as 75 years.