Château de Keriolet  The Château de Keriolet is a castle built in the 19th century in Concarneau (France). At the end of 1850s, under the Second French Empire, Charles Chauveau met the Russian princess Zénaïde Narichkine-Ioussoupov. She was in love with him and bought him a count's title of Chauveau. The Château de Keriolet was commissioned by Zénaïde Narichkine-Ioussoupov (Felix Yusupov' defer grandmother), and built at the end of the 19th century by the French architect Joseph Bigot. The count of Chauveau, 57-year-old, died in October, 1882 to Kériolet. Charles de Chauveau had bequeathed the domain to his sister, Madame Prieur. Zénaïde Narichkine-Ioussoupov bought back Kériolet and decided then to donate it, with her lands and her collections, to the department of Finistère  In 1956, Felix Yusupov won a lawsuit and regained possession of the castle from the department of Finistère. The castle was sold to the city of Concarneau in 1971. In 1988, Christophe Lévèque, acquired the castle, restored it and reopened it to the public.