Since 1861. Estd. 1861. Peter Mondavi Sr. Family Estate. Napa Valley’s oldest winery was founded in 1861 by Charles Krug, the visionary father of Napa Valley winemaking. In 1943, Cesare and Rosa Mondavi purchased this iconic estate and built upon its reputation for innovation and uncompromising quality. Their son, our father, Peter Mondavi Sr., proudly shepherded the winery vineyards throughout the Napa Valley. Today, we carry the torch forward as stewards of thin great taste, passionately perfecting an enduring legacy for the generations to come. - Peter Mondavi Jr. Marc C. Mondavi.