Hertog van Montbazon Graaf van Montauban-de-Bretagne en Rochefort-en-Yvelines Baron van Coupvray en Verger
He is married to Louise Gabriëlle Julia van Rohan-Rohan.
They got married on August 4, 1718 at Jouarre, Ile-de-France, he was 29 years old.
Child(ren):
duc-pair de Montbazon (6de, 1727-1757),
prince de Guéméné (7de, 1727-1757),
comte de Montauban-de-Bretagne (6de, 1727-1757)
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