Complex sentence: There once was an actual, eponymous winery owned by Charles F. Shaw, dedicated to producing Beaujolais-style wines in the Napa Valley AVA, but it went out of business and the name was sold to Bronco.
Split into simpler sentences: There once was an actual, eponymous winery owned by Charles F. Shaw, which produced Beaujolais-style wines in the Napa Valley AVA. That winery went out of business, and the name was sold to Bronco.