Napa Valley has lost one of its most influential figures with the death of Tom Rinaldi, a pioneering winemaker whose 50-year career helped redefine the reputation of merlot. He was 77.

Rinaldi passed away peacefully in his sleep, according to reports.

As the founding winemaker for Duckhorn Vineyards, Rinaldi dedicated 22 years to building the winery's legacy. During a time when merlot was often relegated to blends, he crafted the winery's first Three Palms Merlot. This move not only brought Duckhorn significant acclaim but also elevated the perception of merlot as a varietal wine.

"He put Merlot on the map in the modern era. That’s what I think most people know him for," said Doug Shafer of Shafer Vineyards, recalling Rinaldi on his podcast to the San Francisco Chronicle. Shafer also noted Rinaldi's generosity, adding, "But the other thing was that he was so generous with his time and advice for all of us. He’d be incredibly forthcoming."

Rinaldi's impact extended beyond his own winery, influencing countless winemakers in Napa Valley and beyond. His efforts were instrumental in establishing merlot as a celebrated varietal in the United States and globally.