Earl of Londonderry extinct on the death of his great-grandson, the fourth Earl, in 1714. The second creation came in 1726 in favour of the soldier and politician Thomas Pitt, 1st Baron Londonderry. He had already been created Baron Londonderry in 1719 and was made Viscount Gallen-Ridgeway at the same time as he was granted the earldom, also in the Peerage of Ireland. He was the husband of Lady Frances Ridgeway, daughter and heiress of the fourth Earl of the first creation. A member of the prominent Pitt family, he was the uncle of William Pitt, 1st Earl of Chatham. His younger son,
Lawrence Dundas, 1st Earl of Zetland occasion of the coronation of Queen Victoria, he was created Earl of Zetland (i.e. Shetland) for having provided financial assistance to the new Queen's parents, the Duke & Duchess of Kent, in the years preceding her accession. Dundas's wife died in 1834. He died suddenly on 19 February 1839 at his home of Aske Hall, Yorkshire. He was succeeded by his eldest son Thomas Dundas, 2nd Earl of Zetland. Lawrence Dundas, 1st Earl of Zetland Lawrence Dundas, 1st Earl of Zetland (10 April 1766 – 19 February 1839) was a British politician who sat in the House of Commons from