With a history spanning over 680 years, Weingut Schloss Reinhartshausen in Eltville is one of the oldest wineries in the world. The estate is renowned for its Riesling wines, cultivated on unique vineyard sites like Mariannenaue, an island in the Rhine. Committed to ecological principles, the winery has been certified organic since 2021.

Established in 1337, Schloss Reinhartshausen has been a part of Rheingau wine culture for centuries. The Mariannenaue island is a European nature reserve and has been a protected designation since 2015.