Thirlestane Castle in Lauderdale, Scottish Borders, is the historic seat of the Duke of Lauderdale and family home of the Maitlands for over 400 years. The castle's medieval origins date to at least the 12th century, with the central structure completed in 1590 and expanded in the 1670s and 1840s. Notable features include exceptional plasterwork ceilings and one of the most extensive family portrait collections in the country, plus historical connections to Mary Queen of Scots and Bonnie Prince Charlie. The castle operates as a charitable trust offering guided tours, luxury 5-star accommodations, wedding venues, private dining, horseback riding, and fishing on the River Tweed.