Duke of Lauderdale

Earl of Lauderdale is a title in the Peerage of Scotland. It was created in 1624 for John Maitland, 2nd Lord Maitland of Thirlestane, Berwickshire. The second Earl was created Duke of Lauderdale but died without male issue when the dukedom became extinct. The earldom passed to his brother Charles, 3rd Earl. Charles married, in 1652, Elizabeth, daughter of Richard Lauder of Haltoun and by this marriage came into that family's great estates.

Other titles associated with the earldom are: Viscount of Lauderdale (created 1616), Viscount of Maitland (1624), Lord Maitland of Thirlestane (1590) and Lord Thirlestane and Boulton (1624). All of these titles are in the Peerage of Scotland. The Earl of Lauderdale is the hereditary chief of Clan Maitland. The title Viscount of Maitland is sometimes used as a courtesy title for the Earl's eldest son and heir. The eldest son is also known as the Master of Lauderdale.

The Earl of Lauderdale, as The Bearer of the National Flag of Scotland, one of the Officers of the Royal Household in Scotland, has the right to bear the saltire.

The historical family seat is Thirlestane Castle, near Lauder, in Scotland. Thirlestane is currently the home of Captain the Hon Gerald Maitland-Carew and his family, Captain Maitland-Carew being a son of the late Lady Carew, wife of the 6th Baron Carew and a daughter of the 15th Earl of Lauderdale.

Lieutenant-Colonel John Maitland was the tenth son of the sixth Earl. Elizabeth Tollemache, 2nd Countess of Dysart was the second wife of the Duke of Lauderdale, but her titles passed to her son from her own previous marriage.

also created Earl of Guilford and Baron Petersham in the Peerage of England in 1674

...
Wikipedia