Duchess of Portsmouth

==Holders==
 	From 	Until 	Name 	Lifespan
1.	19 August 1673	14 November 1734	The Most Noble Louise Renée de Penancoët de Kérouaille, Duchess of Portsmouth	1647-1734
==Other Titles==
===Peerage of England===
*Countess of Fareham (1673), 1673-1734
*Baroness Petersfield (1673), 1673-1734