Earl of Airth Privileges heard evidence in support of the opposing claims in 1870 and 1871, but came to no decision, and the three Earldoms remained dormant. On 29 April 2011, Queen Elizabeth II conferred the title of Earl of Strathearn on Prince William of Wales. As a result, on marriage his wife Catherine became Countess of Strathearn. He generally uses this title in Scotland. Earl of Airth Earl of Airth was a title in the Peerage of Scotland, created on 21 January 1633 by Charles I, for William Graham, 7th Earl of Menteith. It became extinct on the death of his grandson
Earl of Rothes She was wife of the Hon. George Waldegrave, younger son of William Waldegrave, 8th Earl Waldegrave. The courtesy title used by an heir apparent to the earldom is "Lord Leslie". The family seat is Littlecroft, near West Milton, Dorset. The heir presumptive is the present holder's only brother, Hon. Alexander John Leslie (b. 1962). Earl of Rothes Earl of Rothes (pronounced ""Roth"-is") is a title in the Peerage of Scotland. It was created in 1458 for George Leslie, 1st Lord Leslie. He had already been created Lord Leslie in 1445, also in the Peerage of Scotland. His grandson, the third