E&J Gallo Winery purchased the Asti Winery, and its Souverain brand, located in the northern part of Alexander Valley. First established in 1881, the winery is one of the largest and oldest in Sonoma County. Asti Winery has 535 total acres, 275 of which are planted vineyard. The winery has the capability of crushing 35,000 tons of grapes. This purchase adds to the 12 wineries E&J Gallo own throughout California and Washington. The sale closed on July 31, 2015.