This is a sweet(ish) red!
The Guntrum family have been making wine since 1648- Louis Konstantine Guntrum is the 11th generation (all called Louis!) of his family to produce wine on the banks of the Rhine between Oppenheimer and Nierstein.
Dornfelder is a relatively new dark-skinned, semi-sweet grape of German origin. It’s wonderful chilled on a summer’s day and is light in alcohol too. Konstantine’s so drinkable and full of red fruit flavour.