San Antonio Winery, founded by the Riboli Family over 100 years ago, is a Southern California winery crafting world-class wines bottle by bottle from estate vineyards in Napa Valley, Paso Robles, and Monterey. They feature tasting rooms, Maddalena Restaurants, and event spaces in Los Angeles, Ontario, and Paso Robles, with brands including Maddalena, San Simeon, Highlands 41, Opaque, and Stella Rosa. Awarded American Winery of the Year by Wine Enthusiast Magazine, they emphasize family tradition across four generations.

Estate vineyards in Napa Valley, Paso Robles, Monterey Riboli Family four generations winemaking Brands: Maddalena, Stella Rosa, San Simeon, Highlands 41, Opaque
Winery hero image Los Angeles location Ontario location Paso Robles location Riboli Family Winemaking & Event Center Maddalena wine photoshoot Highlands 41 wines Riboli family photo
Maddalena Wines
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San Simeon Wines
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Highlands 41 Wines
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Opaque Wines
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Stella Rosa
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California White Wines
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Estate Wines
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Multiple awards for Stella Rosa wines, including Gold Medals at various international wine competitions. 2023
Holiday Parties
Availability now, books early
Private event spaces in Los Angeles, Ontario, Paso Robles for holiday events

Event spaces available now for booking holiday parties; availability limited.