Mionetto is the world's leading Prosecco brand and no.1 Prosecco in the U.S. market! It has been Italy's foremost producer of Prosecco wines for more than 125 years. The winery was founded in 1887 by Francesco Mionetto, in the small village of Valdobbiadene, located just north of Venice, in the heart of the Prosecco region.