Born in Paris to the Prince and Princess of Guéméné, he was the couple's fourth child and third son.

His older brother Hercule Mériadec, Prince of Guéméné was the senior male line as their older brother François Armand, Prince of Montbazon died without surviving issue to carry on the Guéméné succession.

His eldest son, known as Charles Jules, was the father of Charlotte Louise Dorothée de Rohan, secret wife of Louis Antoine, Duke of Enghien.

Charles Jules' son Charles Louis married Marie Louise de Rohan, daughter of Henri Louis, Prince of Guéméné (of the mainline) and Victoire de Rohan[2] (of the middle line).

Through their daughter Joséphine, who married the Prince of Carignano, the present House of Savoy are direct descendants of Charles and his wife.