Edmund Mortimer, 3rd Earl of March
Edmund de Mortimer, 3rd Earl of March and" jure uxoris" Earl of Ulster( 1 February 135227 December 1381) was son of Roger Mortimer, 2nd Earl of March, by his wife Philippa, daughter of William Montagu, 1st Earl of Salisbury and Catherine Grandison.
Spencer Compton, 2nd Earl of Northampton
Spencer Compton, 2nd Earl of Northampton (May 160119 March 1643), styled Lord Compton from 1618 to 1630, was an English soldier and politician who sat in the House of Commons from 1621 to 1622.
He became a peer by writ of acceleration in 1626 and by inheritance in 1630.
He fought in the Royalist army and was killed in action at the Battle of Hopton Heath.
James Compton (musician)
James Compton( born 1 December 1959 in North Tawton, Devon, England) is a British musician, composer, arranger, multi-instrumentalist and actor.
Spencer Compton, 8th Earl of Northampton
Spencer Compton, 8th Earl of Northampton (16 August 1738 – 7 April 1796) was a British peer and Member of Parliament.
Northampton was the younger son of the Hon.
Charles Compton, third son of George Compton, 4th Earl of Northampton and Mary Lucy.
He was educated at Westminster School from 1746.
He was elected to the House of Commons for Northampton in 1761, a seat he held until 1763 when he succeeded his elder brother in the earldom and entered the House of Lords.
He also served as a Groom of the Bedchamber to George III (1760–63), as Recorder of Northampton from 1763 to his death and as Lord Lieutenant of Northamptonshire from 1771 to death.
Lord Northampton married Jane, daughter of Henry Lawton, in 1758.
He died in April 1796, aged 57, and was succeeded in his titles by his son Charles, who was created Marquess of Northampton in 1812.
James Compton, 3rd Earl of Northampton
James Compton, 3rd Earl of Northampton FRS (19 August 1622 – 15 December 1681), known as Lord Compton from 1630 to 1643, was an English peer, soldier, and politician.
Northampton was the eldest son of Spencer Compton, 2nd Earl of Northampton, and Mary Beaumont.
He sat as Member of Parliament for Warwickshire from 1640 to 1642.
The following year his father was killed at the Battle of Hopton Heath and he succeeded in the earldom.
Like his father, Northampton was an ardent Royalist and during the Civil War notably commanded his regiment of cavalry at the First Battle of Newbury in 1643.
He was also Lord Lieutenant of Warwickshire between 1660 and 1681 and Constable of the Tower of London from 1675 to 1679.
Lord Northampton married, firstly, Isabella, daughter of Richard Sackville, 3rd Earl of Dorset, in 1647.
He married, secondly, Mary, daughter of Baptist Noel, 3rd Viscount Campden.
His third son from his second marriage, Spencer, became a prominent politician and served as Prime Minister of Great Britain from 1742 to 1743.
In 1730, Spencer was created Earl of Wilmington.
Lord Northampton died in December 1681, aged 59, and was succeeded in his titles by his eldest son George.
George Compton, 4th Earl of Northampton
George Compton, 4th Earl of Northampton, PC( 18 October 1664 – 15 April 1727), styled Lord Compton from 1664 to 1681, was a British peer and politician.
Northampton was the son of James Compton, 3rd Earl of Northampton, and his wife Mary( née Noel).
Prime Minister Spencer Compton, 1st Earl of Wilmington, was his younger brother.
He succeeded his father in the earldom in 1681, aged 17.
Lord Northampton later served as Lord Lieutenant of Warwickshire from 1686 to 1687 and again from 1689 to 1727 and was Constable of the Tower of London from 1712 to 1715.
At the coronation of William and Mary in 1689 he bore the King's sceptre and cross.
In 1702 he was admitted to the Privy Council.
Lord Northampton married
Jane Fox, daughter of Sir Stephen Fox and his first wife Elizabeth Whittle and half- sister of Henry Fox, 1st Baron Holland, in 1686.
She died on 10 June 1721.
He married secondly Elizabeth, Lady Thorold, the widow of Sir George Thorold, 1st Baronet, on 3 July 1726.
She died aged 67 on 15 January 1750, and was buried with her parents, Sir James Rushout, 1st Baronet, and his wife Alice Pitt, at Blockley, Gloucestershire.
Northampton died on 15 April 1727, aged 62, and was succeeded in his titles by his eldest son James.
William Graham, 3rd Earl of Menteith
William Graham, 3rd Earl of Menteith( c. 1500 – c. 1543) was a Scottish magnate and third Earl of Menteith.
John Gordon, 3rd Earl of Aboyne
John Gordon, 3rd Earl of Aboyne( born April 1700, died 7 April 1732) was the son of Charles Gordon, 2nd Earl of Aboyne and Elizabeth Lyon.
He succeeded his father as 3rd Earl of Aboyne in April 1702.
On his death in 1732 he was succeeded in his titles by his eldest son.
John Lindsay, 19th Earl of Crawford
John Lindsay, 19th Earl of Crawford and 3rd Earl of Lindsay( died December 1713) was a Scottish peer and politician.
Daniel Finch, 8th Earl of Winchilsea
Daniel Finch, 8th Earl of Winchilsea and 3rd Earl of Nottingham,( 24 May 16892 August 1769) was a British politician.

Question: What is the cause of death of James Compton, 3Rd Earl Of Northampton's father?