Earl of Mayo

Earl of the County of Mayo, usually known simply as Earl of Mayo, is a title in the Peerage of Ireland. It was created in 1785 for John Bourke, 1st Viscount Mayo (of the second creation). For many years he served as "First Commissioner of Revenue" in Ireland. He had already been created Baron Naas, of Naas in the county of Kildare, in 1776, and Viscount Mayo, of Moneycrower in the county of Mayo, in 1781, also in the Peerage of Ireland. This branch of the Bourke family descends from John Bourke, fourth son of Sir Thomas Bourke (died 1397), whose second son Edmund was the ancestor of the Viscounts Mayo (of the first creation). Before becoming Viscounts and Earls of Mayo, the senior branch of the family held the Gaelic title Mac William Íochtar and received the White Rod. The Earls of Clanricarde were members of another branch of the De Burgh dynasty.

Lord Mayo was succeeded by his eldest son John, the second Earl, who was a member of the Irish House of Commons. On his death the titles passed to his younger brother, the third Earl. He was a prominent Anglican clergyman and served as Bishop of Leighlin from 1772 to 1782 and as Archbishop of Tuam from 1782 to 1794. He was succeeded by his eldest son, the fourth Earl. He sat in the House of Lords as an Irish representative peer from 1816 to 1849. On his death the titles passed to his nephew, the fifth Earl. He was an Irish representative peer in the House of Lords from 1852 to 1867.

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