He married three times and through his daughter, is an ancestor of the present House of Savoy.

In 1752 he was created the Grand Squire of France, a post which had been occupied by his distant cousin Charles de Lorraine.

[1] The post was one of the Great Officers of the Crown of France and a member of the King's Household.

Louis XV made him a Brigadier of the King's Armies in April 1745[2][failed verification] and a knight of the Order of the Holy Spirit, the most prestigious knighthoods in France (21 May 1752).

On 3 October 1748 he married his third wife, Princess Louise Julie Constance of Rohan (1734–1815), daughter of the Prince of Rochefort.