James Ley, 1st Earl of Marlborough

The Right Honourable The Earl of Marlborough PC
Lord High Treasurer
In office 11 December 1624 – 15 July 1628
Monarchs	James I Charles I
Preceded by	Lionel Cranfield, 1st Earl of Middlesex
Succeeded by	Richard Weston, 1st Earl of Portland
Member of Parliament for Westbury
In office 1621–1622 Serving with Miles Fleetwood
Preceded by	Matthew Ley Henry Ley
Succeeded by	Walter Long Henry Mildmay
Member of Parliament for Bath
In office 1614–1621 Serving with Nicolas Hyde
Preceded by	William Shareston Christopher Stone
Succeeded by	Sir Robert Phelips Sir Robert Pye
Member of Parliament for Westbury
In office 1609–1614 Serving with Matthew Ley
Preceded by	Matthew Ley Alexander Chocke
Succeeded by	Matthew Ley Henry Ley
Member of Parliament for Westbury
In office 1604–1605 Serving with Matthew Ley
Preceded by	Matthew Ley Henry Jackman
Succeeded by	Matthew Ley Alexander Chocke
Member of Parliament for Westbury
In office 1597–1601 Serving with Matthew Ley
Preceded by	William Jordyn Henry Fanshawe
Succeeded by	Matthew Ley Henry Jackman
Personal details
Born	c. 1552 Teffont Evias, Wiltshire, England
Died	1629
Spouses	Mary Pettie Mary Bowyer Jane Boteler
Children	Henry Ley, 2nd Earl of Marlborough Lady Hester Pulter

James Ley, 1st Earl of Marlborough (c. 1552–1629) was an English judge and politician who sat in the House of Commons at various times between 1597 and 1622. He was Lord Chief Justice of the King's Bench in Ireland and then in England, and was Lord High Treasurer from 1624 to 1628. On 31 December 1624, James I created him Baron Ley, of Ley in the County of Devon, and on 5 February 1626, Charles I created him Earl of Marlborough. Both titles became extinct upon the death of the 4th Earl of Marlborough in 1679.