By the 1890s the property was purchased by Tirso de Olazábal y Lardizábal, Count of Arbelaiz, and Graziela Zileri del Verme degli Obbizi, Duchess of Cadaval. Olazábal, the Chief Deputy ("Jefe Delegado") of Carlism in Vascongadas and Navarre between 1887 and 1913, had moved to Saint-Jean-de-Luz after the Carlist defeat in the Civil War, remaining there ever since and acquiring several properties in the province of Labourd. Graziela Zileri, an Italian aristocrat whose maternal grandmother was the famous Duchess of Berry, was married to the Portuguese aristocrat Jaime Álvares Pereira de Melo, 8th Duke of Cadaval (branch of the House of Braganza). After the Liberal Wars, the Cadaval had fled to Spain, where they supported Carlism, and then settled in France.