St. Francis Winery & Vineyards is in Sonoma County. It was founded in 1971 by Joe Martin who planted 22 acres of Chardonnay and 60 acres of Merlot. Today the estate is part of the Kobrand conglomerate of wine and spirits companies. St. Francis now owns more than 415 acres in several appellations, including Sonoma and the Russian River Valley. St. Francis produces Cabernet Sauvignon, Claret, Merlot, Zinfandel and Chardonnay. The estate is especially well known for its old vines Zinfandel.
Sonoma County is not an AVA, but it is a commonly used informal designation for wines made outside of more specific AVAs within Sonoma, which is a large wine producing region just west of Napa Valley. Though Sonoma is often overshadowed by its glamorous neighbor Napa Valley, it has a long history of wine production. The area specialized in jug wine until the mid-20th century, when Sonoma producers took a cue from Napa and started improving quality. Unlike Napa, where Cabernet Sauvignon is king, Sonoma specialized in Chardonnay, Pinot Noir and Zinfandel, though excellent Cabs are produced too. There are at present 16 AVAs within Sonoma County, and, like much of the West Coast of the United States, new AVAs are created in Sonoma County with regularity. Some Sonoma appellations, such as the Russian River Valley, are renowned for Pinot Noir and Chardonnay.
One of the most widely grown grape varieties, it can be found in nearly every wine growing region. A cross between Cabernet Franc and Sauvignon Blanc. It’s a hardy vine that produces a full-bodied wine with high tannins and great aging potential.