The Château de Beaumarchais in Brétignolles-sur-Mer is a Renaissance-style building constructed in the 16th century by Vincent Bouhier de L’Écluse, on the foundations of an old medieval manor house. A private property listed as a Historic Monument in 1962, it is remarkable for its facades, roofs, and a Renaissance fireplace on the ground floor. Henry IV stayed there, reinforcing the prestige of the estate and its wines. The current architecture includes characteristic wings and turrets added in the 16th century, and the framework was completed in the 17th century. The château has no connection with the writer Beaumarchais; its name comes from an old contraction linked to the site.