Château d'Oiron, a magnificent 16th and 17th-century fortress in the Deux-Sèvres département, claims origins in 1442 when King Charles VII granted the domain to Guillaume Gouffier, governor of Touraine. This storied estate hosted royal mistress Madame de Montespan and inspired Charles Perrault's fairy tale 'Puss in Boots,' while Renaissance intellect Blaise Pascal once graced its halls as companion to Charlotte Gouffier. Classified as a historic monument in 1923 and expropriated in the 1940s, the château underwent transformation into a cultural center featuring the Curios & Mirabilia contemporary art collection and a contemporary park. Year-round open to the public, it stands as the most visited historic monument in Deux-Sèvres, seamlessly blending Renaissance grandeur with modern artistic vision.