The Pazo de San Mauro, originally owned by the Spanish-Portuguese noble family Pereira de Castro, descendants of King Sancho I of Portugal, was built in 1591 and vine growing has always been part of its history, making it one of the oldest wineries in Europe.

The vineyards stretch out over the 30-hectare estate on terraces of boulders with a granite subsoil, which descend towards the river Miño. The combination of sandy soil on the bank of the river and the boulders and granite bedrock on the slopes and higher parts of the property, provides excellent conditions for the growth of this distinctive local variety of grape.