Lorenzo Trefethen

Lorenzo Trefethen is a third-generation vintner with Trefethen Family Vineyards in Napa Valley, where he supports sales, marketing, finance, export markets, and the winery’s direct-to-consumer systems. The Trefethen family website says he took over instruction of Stanford’s French Department wine tasting course as an undergraduate and later returned to the family business, while a 2026 winery trade page lists him as Vintner.