Sangiacomo Family Vineyards Story. Every day, we come in from the fields and brush the dust off our jeans—the same dust Vittorio and Maria Sangiacomo claimed when they purchase this land more than 80 years ago. Growing-up on the ranch meant developing an appreciation for what our family put into it. Not only regarding the cultivating of the best grapes possible, but a true and unwavering desire to carry on the tradition. That’s what legacy is all about. Sonoma Valley, CA.