Château d'Anet is a historic Renaissance castle in Eure-et-Loire, approximately 78 kilometers west of Paris, constructed in 1548 by King Henri II of France for his mistress Diane de Poitiers. The estate serves as a private family residence welcoming visitors and features a chapel where Diane de Poitiers is entombed, alongside period furnishings and personal artifacts reflecting her legacy. Official guides lead tours providing historical context about the royal connection and architectural significance. Located 25 kilometers from Mantes and 16 kilometers from Dreux with convenient motorway access, the château accepts cash or credit card payments, with admission fees supporting its ongoing preservation.