Trebbiano represents a group of grapes that share the same name but they are not genetically related. The pronunciation is Trehb bee AH noh. We are working on this Trebbiano grape description. Please come back soon. Send us an e-mail if you are looking for more info at cheers@drinkitalian.com Two of the best books about Italian grapes, where some of this information come from, are:– Native Grapes of Italy, by Ian d’Agata– Italian Wine Unplugged, by Steve Kim