Aubun is a French wine grape, which typically would make it a household name across the world, but alas is native to the Rhone Valley of France which is only gainnig international acclaim with its recent exploits.
Not largely planted until the 19th century when phylloxera nearly destroyed the French wine industry for the first time, Aubun showed some resitance to the North American pest. That resistance led to increased plantings at the time and in every insuing outbreak until the advent of hybridization.
Of course, plantings have never stayed especially high because the wine quality can be quite low. Aubun has a big yield which might sound appealing to some, until the winery owner tastes a bitter wine which is difficult to sell. That being said, Aubun is still used as a blending grape in the Rhone Valley.