Earl of Marlborough

Earl of Marlborough is a title that has been created twice, both times in the Peerage of England.

He had already been created a baronet, of Westbury in the County of Wiltshire, in the Baronetage of England in 1619,[1] and Baron Ley, of Ley in the County of Devon, on 31 December 1624, in the Peerage of England.

His eldest son, who served as Custos Rotulorum of Somerset, was summoned to the House of Lords as Baron Ley by writ of acceleration in 1628.

He was unmarried and was succeeded by his uncle, William Ley, who became the fourth Earl.

He was subsequently created Duke of Marlborough, and the earldom has since descended with the dukedom.