As all wine produced in this appellation, Château Beauregard is unclassified but the estate is estimated among the great growths of the region.
Château Beauregard is a historic estate, established in the 11th century by the Knights Hospitallers of St. John of Jerusalem,[2] while in terms of the initial viticulture, Beauregard was exemplified by Professor Henri Enjalbert as a prime Pomerol château from the first generation of the viticultural revolution.
In 1793 the property, then with 6.3 hectares (16 acres) under vine, was sold to Bonaventure Berthomeiu, a wealthy figure of Saint-Émilion.
[5] The vineyard area extends 17.5 hectares (43 acres), with a grape variety distribution of 70% Merlot and 30% Cabernet Franc.
In 1932 the architectural firm of Henry M. Polhemus and Lewis Augustus Coffin designed and built a replica of the château on the expansive Gould-Guggenheim estate in Port Washington, Long Island, NY, for Mrs Daniel Guggenheim named "Mille-Fleurs"; it still stands in a Nassau County park.