The red grape variety is a new breed between Madeleine Angevine x complexion ( Complexion of Cher ) according to published in 2012 DNA analysis, The parenthood specified by the breeder Blue Portuguese x Complexion turned out to be wrong. Synonyms are Froelich V 4-4, color grape Froelich and purple. The cross was made by the private breeder Gustav Adolf Froelich (1847-1912). The variety remained unnoticed for many decades and was used as "Froelich V 4-4" in breeding establishments.
In the 1930s she was in the research institute Geisenheim edited by ampelography and received from Dr. Helmut Becker (1927-1990) the name Dunkelfelder, with which he alluded to the unknown origin and the dark wine color. The variety protection was issued in 1980. The vine is sensitive to frost, Dryness and wrong mildew, It produces deep dark, bright red wines, which is why it is very suitable as teinturier (Teinturier). In 2009 she occupied in Germany 341 hectares with a downward trend. In 2010 there were small stocks in the Switzerland (24 ha), England (2 ha) and Canada (Statistics Kym Anderson ).
Images: Ursula Brühl, Doris Schneider, Julius Kühn Institute (JKI)