Heroldrebe is a red wine grape from Germany. Like many other new grape varieties whcih were created in Germany from the 1920's until the late 1960's, the grape was created by August Herold.
Heroldrebe is a cross between Blauer Portugieser and Lemberger.
The unfortunate aspect of Heroldrebe is that is ripens incredibly late for a cool German growing season (along the lines of Pinot Noir in the new world) while only producing lightly colored wines despite the eternity of time on the vine. For that reason, the grape may in fact be extinct in the coming years as total plantings are down to almost nothing (200 hectacres in total across Germany) as of 2008.