What is the name of the Marchesa's estate as noted in the nonfiction book, War in Val D'Orcia, 1943-1944?

"La Foce" is the name of the Marchesa's estate, and of the expansive, richly furnished house at the heart of that estate. La Foce becomes the center of the Marchesa's efforts at providing refuge and safety for family, refugees, and deserting soldiers. It eventually becomes a base of operations for retreating German forces.