Château Pichon Comtesse was once part of the larger Pichon estate, owned by Pierre de Rauzan, along with what today is Château Pichon Longueville Baron. In 1850, the estate was divided into the two current Pichon estates. In 1925, Château Pichon Longueville Comtesse de Lalande was bought by Edouard Miailhe and Louis Miailhe. The daughter of Edouard Miailhe, May Eliane de Lencquesaing (born in 1926) later became the owner and manager of the property. In 2006, de Lencquesaing sold a majority interest in the Château to the Rouzaud family, which also owns the Champagne house Louis Roederer.