Dominus Estate, formerly known as Napanook vineyards, is on the Westside of the Napa Valley facing the town of Yountville, approximately one-third of the way up the valley. At the foot of the Mayacamas Mountains, it is located between the valley floor and the hillside.
Christian Moueix in 1982 entered into a joint venture with Robin Lail and Marcia Smith, John Daniel's two daughters. This was the birth of Dominus, and its first vintage was harvested in 1983. Since then, Christian Moueix has worked to restore the unique character of the original vineyard. He became full owner in 1995.