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,
Earl of Dublin third time on 10 September 1849 or 17 January 1850,in the Peerage of the United Kingdom for Albert Edward, Prince of Wales, eldest son of Queen Victoria. Earl of Dublin Earl of Dublin is a title that has been created three times in British and Irish history. It was created first on 22 October 1766 in the Peerage of Ireland for Prince Henry, Duke of Cumberland and Strathearn, younger brother of King George III. This title became extinct in 1790 upon the Duke's dying childless. It was created again on 24 April 1799, again in the Peerage of Ireland, for