Lord Egremont

Earl of Egremont was a title in the Peerage of Great Britain. It was created in 1749, along with the subsidiary title Baron of Cockermouth, in the County of Cumberland, for Algernon Seymour, 7th Duke of Somerset, with remainder to his nephews Sir Charles Wyndham, 4th Baronet, of Orchard Wyndham, and Percy Wyndham-O'Brien. The Duke had previously inherited the Percy estates, including the lands of Egremont in Cumberland, from his mother Lady Elizabeth Percy, daughter and heiress of Joceline Percy, 11th Earl of Northumberland. In 1750 Sir Charles Wyndham succeeded according to the special remainder as second Earl of Egremont on the death of his uncle. His younger brother Percy Wyndham-O'Brien was created Earl of Thomond in 1756.

The Wyndham Baronetcy, of Orchard Wyndham in the County of Somerset, had been created in the Baronetage of England in 1661 for William Wyndham, who represented Somerset and Taunton in Parliament. His son, the second Baronet, represented Ilchester in the House of Commons. He was succeeded by his only son, the third Baronet, a prominent politician who notably served as Chancellor of the Exchequer. He married Lady Catherine Seymour, daughter of Charles Seymour, 6th Duke of Somerset. His eldest son was the fourth Baronet, who succeeded as second Earl of Egremont in 1750.

...
Wikipedia