The German Jacob Gundlach (1818-1894) emigrated from his native Bavaria to San Francisco in 1850. In 1858 he bought land in Sonoma County (California) and founded the Rhinefarm winery with his partner Emil Dresel. This was in the neighbourhood of the Buena Vista Winery of the Californian winegrowing pioneer Agoston Haraszthy (1812-1869), with whom Gundlach was a friend. A year later, Gundlach brought back vine material from a trip to his homeland, including Riesling vines. The first wine was pressed from them in 1861. In that year, Charles Bundschu, a German from Mannheim, joined the company. His business acumen brought the winery great growth over the next 30 years, including the construction of a large winery in San Francisco. After the death of Jacob Gundlach in 1894, the company was renamed Gundlach-Bundschu. The great earthquake of 1906 destroyed the cellars and the office in San Francisco. However, work continued and the wines won many prizes. After the death of his father Charles, Walter Bundschu took over the management of the winery in 1910.
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