The Château Le Pavillon de Boyrein is a 25 hectare estate in the commune of Roaillan, on the edge of the Sauternes region. This region was once the hunting grounds of Pope Clement V. In the 16th century, the Pontacq family, a famous dynasty of winegrowers, were the barons of Boyrein (Bois de la Reine).

Already present on the Feret in 1849, the Boyrein estate was owned by the Lords of Gourgue. In 1877 it was divided into 3 properties. Arnaud Duperrain built the Pavillon de Boyrein on the one he owned at the beginning of the 20th century. In 1926 the Salles family from Bazas, bought the property which was sold to the current owners, Mr and Mrs Bonnet, in 1965.