Lambrusco viadanese takes his name form the town of Viadana in the Mantova province in Lombardy.
It is also cultivated in the Emilia Romagna provinces close to the border with Lombardy on the Mantova side. In tha ancient times it was considered one of the most important varieties and its planting was encouraged.
Grappello Ruberti (from the name of the agronomist Ugo Ruberti) is considered a synonym. Even if in the last years new studies seem to highlight that they are two distinc varieties.