Louise Élisabeth de France ( Marie Louise Élisabeth ; 14 August 1727 - 6 December 1759 ) was the eldest daughter of King Louis XV of France and his Queen consort , Maria Leszczyńska , and the elder twin sister of Anne Henriette de France .
Louise Élisabeth de France ( Marie Louise Élisabeth ; 14 August 1727 - 6 December 1759 ) was the eldest daughter of King Louis XV of France and Maria Leszczyńska .