What is "alionza"

Alionza is a white Italian wine grape variety that is grown in the Emilia-Romagna region of north central Italy, where it has a long history of being used since the 14th century as both a table grape and blending grape for wine production. While sometimes confused with the Greek wine grape Sklava, DNA analysis in the early 21st century has suggested, instead, that Alionza may be closely related to the Tuscan wine grape Trebbiano.