Swiss wine
DNA profiling has shown that the grape is likely the offspring of the Swiss wine grape Rèze and an unknown second parent. That other parent maybe the Piedmontese grape Erbaluce which DNA analysis has shown to have some close relationship with Cascarolo bianco but the exact nature of that relationship is not yet known. In his 1887 handbook on ampelography, German ampelographer Hermann Goethe speculated that Cascarolo bianco was the same variety as the Hungarian wine grape Fehér Gohér (also known as Augster Weisser) but today DNA evidence has shown that the two grapes are unrelated.