Габриэль д’Эстре
On 7 May 1953, the commune of Mantes-Gassicourt was officially renamed Mantes-la-Jolie (meaning "Mantes the pretty"), allegedly in reference to a letter of King Henry IV addressed to his mistress Gabrielle d'Estrées who resided in Mantes: "I am on my way to Mantes, my pretty" ().