Jules de Rohan (Jules Hercule Mériadec; 25 March 1726 – 10 December 1800) was Prince of Guéméné. Born in Paris, he died in Carlsbourg. He was known as Jules.

Jules was the oldest son of Hercule Mériadec, Prince of Guéméné (1688–1757) and Louise Gabrielle Julie de Rohan (1704–1741), daughter of Hercule Mériadec de Rohan, Prince of Soubise and Anne Geneviève de Lévis

On 10 February 1743 he married Marie Louise de La Tour d'Auvergne (1725–1793), daughter of Charles Godefroy de La Tour d'Auvergne, Duke of Bouillon (1706–1771) and Maria Karolina Sobieska.

Jules and Marie Louise had only one son, Henri Louis de Rohan, who married a cousin, Victoire de Rohan, daughter of Charles de Rohan, Prince of Soubise and Anne Therese of Savoy.

The Prince of Guéméné died in Belgium aged 74, his son, daughter-in-law and grandchildren fled to Bohemia before the French Revolution, but his wife was guillotined in 1793.

Hercule Mériadec and Louise Gabrielle's children:

...
Wikipedia