The castle would become a favourite residence of Charles VII who gave it to his mistress, Agnes Sorel as her residence. She is recognised as the first official royal mistress of a king (there would have been many before her).
He was forty years old when he met Agnes in 1443, she was twenty-four. He fell quickly in love with this young woman who was cultivated, intelligent and so very alluring.
She died in childbirth after she followed Charles on a campaign
to Jumièges in 1450.The cause of death was originally thought to be dysentery, although scientists have since concluded that Agnès died from mercury poisoning, possibly the victim of murder, although mercury was also used to treat such things as worms
Her tomb is in the nearby church of St.Oars..