The Duchy or Duke of Rambouillet was a French Peerage created in 1711 for Louis Alexandre de Bourbon, Légitimé de France, Count of Toulouse, youngest legitimised son of Louis XIV and Madame de Montespan.

Picture	Name	Father	Birth	Marriage	Became Duke	Ceased to be Duke	Death	Spouse
	Louis Alexandre de Bourbon, Légitimé de France, Count of Toulouse	Louis XIV of France (Bourbon)	6 June 1678	2 February 1723	29 July 1711[1]	1 December 1737		Marie Victoire de Noailles
	Louis Jean Marie de Bourbon, Duke of Penthièvre	Louis Alexandre de Bourbon, Count of Toulouse (Bourbon)	16 November 1725	29 December 1744	1 December 1737	4 March 1793		Princess Maria Teresa Felicitas of Modena

• List of French peerages