Earl of Loudoun

Earldom of Loudoun

Creation1633
Created byCharles I
PeeragePeerage of Scotland
First holderJohn Campbell, 2nd Lord Campbell of Loudoun
Present holderSimon Michael Abney-Hastings, 15th Earl of Loudoun
Heir presumptiveHon. Marcus William Abney-Hastings
Subsidiary titlesLord Campbell of Loudoun
Lord Tarrinzean and Mauchline

Earl of Loudoun (pronounced "loud-on" /ˈldən/), named after Loudoun in Ayrshire, is a title in the Peerage of Scotland.[1] It was created in 1633 for John Campbell, 2nd Lord Campbell of Loudoun, along with the subsidiary title Lord Tarrinzean and Mauchline. The 1st Earl's wife Margaret was the granddaughter and heiress of Hugh Campbell, who had been created Lord Campbell of Loudoun; he resigned the peerage in favour of his grandson-in-law, who was later created an earl.

The 6th Countess married the 2nd Earl of Moira, who was later created Marquess of Hastings. The next three Earls also held that Marquessate. However, with the death of the 4th Marquess, the Marquessate became extinct, but the Earldom passed to the elder daughter of the 2nd Marquess.

The heir apparent to the Earldom uses the courtesy title Lord Mauchline.