"Historic Meets Modern at Charles Krug Krug is an important winery for a couple of reasons: Founded in 1872, it is one of the oldest wineries in Napa Valley and it is here that Robert and Peter Mondavi had their infamous disagreement that led to Robert leaving and starting his eponymous winery. Peter and Robert's parents, Rosa and Cesare Mondavi, originally made their money shipping zinfandel grapes to other Italian immigrants on the East Coast during Prohibition. In 1943, with the money they made, they purchased Krug. The Mondavi family recently renovated the original redwood cellar—lining the walls with staves from the original redwood casks. Now one of the oldest family-owned wine companies in Napa Valley, Krug and its line of C. Mondavi wines is a must visit."