Earl of Loudoun named after Loudoun in Ayrshire, is a title in the Peerage of Scotland. 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.
Lords Campbell of Loudoun (1601)
Hugh Campbell, 1st Lord Campbell of Loudoun (d. 1622) (resigned in favour of his grandson-in-law c. 1619)
John Campbell, 2nd Lord Campbell of Loudoun (1598–1662) (created Earl of Loudoun in 1633)
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William, it’s a real privilege to explore Scotland’s rich past through your vivid and detailed storytelling. Your commitment to sharing the lives of noble families like the Earl of Loudoun shows how deeply you value cultural heritage. Your blog has become a welcoming treasure chest of knowledge for loyal readers and new visitors alike, and your generosity is truly appreciated.
Beyond the debate about the number of peerage titles, there is a deeper layer often overlooked: the historical weight and social responsibility tied to these ancient ranks. Even if they are now ceremonial, their legacy still shapes local identity in Ayrshire, where the name Loudoun began. It’s more than history—it’s a lasting imprint on geography and community belonging, echoing the warmth you share.
Through your thoughtful question, the real essence becomes clear: these historical stories must stay meaningful in today’s world. You help us not only read but reflect on the modern relevance of noble families. May your sincere desire to spark warm, engaging conversations through your writings continue to shine and inspire readers everywhere.
Historical legacy inspiring meaningful reflection today
awe thank you Livora your kind comments always make my day.
William,
Thanks to your blog I knew many interesting things about Scotland and my temptation to visit it became even stronger.
and they would love to have you Alexander, thank you…
The history of Scotland is grand, but I had never thought of a female Earl.
There was a lot of them Timothy…. throughout the centuries, thank you.