Piwi varietal
Parentage: Riesling & FR 589-54 (incidentally, the same parents also gave rise to the new German variety Johanniter)
It yields a riesling-like white wine with moderate acidity. Due to its good wine quality, it was released for the quality grade "wine" in Austria in 2012.(https://glossary.wein.plus/donauriesling)
https://www.vivc.de/index.php?r=passport%2Fview&id=23901