He married twice ; firstly on 3 April 1745 to Marie Charlotte de La Tour d'Auvergne ( 20 December 1729 -- 6 September 1763 ) , daughter of Emmanuel Théodose de La Tour d'Auvergne and his last wife Louise Henriette Françoise de Lorraine .
He married twice ; firstly on 3 April 1745 to Marie Charlotte de La Tour d'Auvergne ( 20 December 1729 -- 6 September 1763 ) , daughter of Emmanuel Théodose de La Tour d'Auvergne and his last wife Louise Henriette Françoise of Lorraine .