I am Sophie of France, I was a French princess, a fille de France. I was the sixth daughter and eighth child of King Louis XV and his queen consort, Marie Leszczyńska. First known as Madame Cinquième (an older sister, Marie Louise, had died in 1733), I later became Madame Sophie. Me and my sisters were collectively known as Mesdames. In 1777, me and my elder sister Adélaïde were both given the title Duchess of Louvois.