The title of Marquess of Ailesbury was created in the Peerage of the United Kingdom in 1821 for the Earl of Ailesbury.
The Marquess possessed the courtesy titles of Earl of Cardigan (English, 1661), Earl of Ailesbury (Great Britain, 1776), Earl Bruce (U.K., 1821), Viscount Savernake (U.K. 1821), Baron Brudenell (English, 1628), and Baron Bruce of Tottenham (Great Britain, 1746). He is also an English baronet.
The heir apparent to the marquessate normally bears the courtesy title of Earl of Cardigan.
Marquesses of Ailesbury (1821)
- Charles Brudenell-Bruce, 1st Marquess of Ailesbury (1773-1856)
- George William Frederick Brudenell-Bruce, 2nd Marquess of Ailesbury (1804-1878)
- Ernest Augustus Charles Brudenell-Bruce, 3rd Marquess of Ailesbury (1811-1886)
- George William Thomas Brudenell-Bruce, 4th Marquess of Ailesbury (1863-1894)
- Henry Augustus Brudenell-Bruce, 5th Marquess of Ailesbury (1842-1911)
- George William James Chandos Brudenell-Bruce, 6th Marquess of Ailesbury (1873-1961)
- Chandos Sydney Cedric Brudenell-Bruce, 7th Marquess of Ailesbury (1904-1974)
- Michael Sydney Cedric Brudenell-Bruce, 8th Marquess of Ailesbury (b. 1926)
