Marquess Wellesley

==Holders==
 	From 	Until 	Name 	Lifespan
1.	2 December 1799	26 September 1842	The Most Hon. Richard Wellesley, 1st Marquess Wellesley, K.G., P.C.	1760-1842
==Other Titles==
===Peerage of Great Britain===
*Baron Wellesley (1797), 1799-1842
===Peerage of Ireland===
*Earl of Mornington (1760), 1799-1842
*Viscount Wellesley (1760), 1799-1842
*Baron Mornington (1746), 1799-1842