The origins of the company date back to 1922, when Genoa-born Italian Louis Michael Martini (1887-1974) founded his first winery in Pleasanton, California. Before, he had made wine with his father and worked as a consultant for wineries. During the beginning shortly thereafter prohibition he mainly produced altar wine, After the end of 1933, he founded a new winery in St. Helena in California at the present location Napa Valley, In 1938 was at Sonoma acquired the old Goldstein Ranch and named "Monte Rosso Vineyards". From 1954 son Louis Peter Martini (1918-1998) took the lead, followed in 1977 in third generation Michael Martini (born 1949) and his sister Carolyn Martini. Michael Martini was also president of the Napa Valley Vintners Association and the American Society of Enology & Viticulture. In 2002, the company became a beverage multinational Gallo accepted. The vineyards cover 320 acres in Napa and Sonoma County. They are the red varieties Barbera, Cabernet Sauvignon, Gamay Noir, Merlot, Pinot Noir and Zinfandel, and the white varieties Chardonnay, Chenin Blanc, Folle Blanche, Gewürztraminer and Riesling planted. The most important quality is Cabernet Sauvignon, which also makes the best wines (Sonoma Valley Monte Rosso, Alexander Valley, Napa Valley and Sonoma County).