The Earl of Loudoun is a title in the Peerage of Scotland, created in 1633. The title is associated with the title Lord Tarrinzean and Mauchline (created 1633), which is used as a courtesy title for whomever is the heir and eldest son of the Earl for the time being.
The sixth Countess of Loudoun married the first Marquess of Hastings. The surname of the holders of the title thus changed. The next three Earls also held the Marquessate. However, with the death of the fourth Marquess, the marquessate became extinct, but the earldom continued.
Loudon County is one of the youngest and geographically smallest counties.
Fort Loudon was named after John Campbell, the fourth Earl of Loudon, who was commander of the English forces in America at the out break of the French and Indian War.
Loudon County is predicted to have a 30% increase in population between 2000-2010.
It was therefore determined to repair, in part, the loss sustained in that well-fought action, by raising a second regiment in the Highlands, and authority to that effect was granted to the Earl of Loudon.
By the influence of the noblemen, chiefs, and gentlemen of the country, whose sons and connexions were to be appointed officers, a body of 1250 men was raised, of whom 750 assembled at Inverness, and the remainder at Perth.
After the loss of Bergen-op-Zoom, Loudon’s Highlanders joined the Duke of Cumberland’s army, and at the peace of 1748 returned to Scotland, and was reduced at Perth in June of the same year.