John Sheffield, 2nd Baron Sheffield
John Sheffield, 2nd Baron Sheffield, of Butterwick (c. 1538 – 10 December 1568) was the first son of Edmund Sheffield, 1st Baron Sheffield, and Lady Anne de Vere.
He married Douglas Howard, daughter of William Howard, 1st Baron Howard of Effingham, and Margaret Gamage.
They had two children:
Patrick Ruthven, 1st Earl of Forth
Patrick Ruthven, 1st Earl of Forth and 1st Earl of Brentford( c. 1573 – 2 February 1651) was a Scottish nobleman, general, and diplomat.
Denzil Holles (MP)
Denzil Holles( ca. 1538 – 12 April 1590) JP of Irby upon Humber, was a member of parliament for East Retford.
Denzil Holles, the son of William Holles( MP), was given the manor of Irby upon Humber by his father, on the occasion of his marriage to Eleanor, daughter of Edmund Sheffield, 1st Baron Sheffield, in the mid-16th century.
Holles was not an absentee landlord, spending much of his time in Irby.
He made numerous improvements to the estate and was in the process of constructing a new manor house when he died in 1590.
Writing in the 1600s, when the estate was owned by Denzel's son John Holles, 1st Earl of Clare, cousin Gervase Holles described it as: He married Eleanor Sheffield, daughter of Edmund Sheffield, 1st Baron Sheffield.
The baptism of at least five of his children are recorded in the parish registers.
They include:
He served as a captain under Ambrose Dudley, 3rd Earl of Warwick putting down the Northern Rebellion in 1569.
He was appointed member of parliament for East Retford twice, in 1584 and again in 1586.
He died in April 1590 was buried in the chancel of the church at Irby upon Humber.
James Sheffield, Baron Sheffield
James Sheffield, Baron Sheffield(" fl." 1640) was an English politician who sat in the House of Commons of England in 1640.
He supported the Parliamentary cause in the English Civil War.
Sheffield was the son of Edmund Sheffield and his wife Mariana Irwin.
When his father became Earl of Mulgrave, he received the courtesy title Baron Sheffield.
He died before his father and the title went to his nephew, Edmund Sheffield, 2nd Earl of Mulgrave.
In April 1640, Sheffield was elected Member of Parliament for St Mawes in the Short Parliament.
In 1642 he was a captain in the parliamentarian army of the Earl of Essex, and in 1645 a Colonel in the New Model Army.
George Grey, 2nd Earl of Kent
George Grey, 2nd Earl of Kent( 1454 – 25 December 1505) was the son of Edmund Grey, 1st Earl of Kent and Lady Katherine Percy.
He was the Second Earl of Kent from 1490 to 1505.
Robert Stewart, 1st Earl of March
Robert Stewart, 1st Earl of Lennox then 1st Earl of March( c. 152229 March 1586) was a Scottish nobleman of the family of Stewart of Darnley.
Edmund Sheffield, 1st Earl of Mulgrave
Edmund Sheffield, 1st Earl of Mulgrave, 3rd Baron Sheffield, KG (
c. 1564 – 1646) was a British peer and Member of Parliament, who served as Lord Lieutenant of Yorkshire from 1603 to 1619 and Vice-Admiral of Yorkshire from 1604 to 1646.
He was created Earl of Mulgrave in 1626.
He was the son of John Sheffield, 2nd Baron Sheffield and Douglas Howard, and the grandson of Sir Edmund Sheffield.
His grandfather, a second cousin of Henry VIII, was raised to the Peerage in 1547 as "Baron Sheffield, of Butterwick", and in 1549 was murdered in the streets of Norwich during Kett's Rebellion.
He married, firstly, Ursula Tyrwhitt, by whom he had at least one daughter, Mary Sheffield and, secondly, Mariana Irwin.
He was succeeded by his grandson, likely via his second wife Mariana Irwin, Edmund Sheffield, 2nd Earl of Mulgrave.
John Holles, 1st Earl of Clare
John Holles, 1st Earl of Clare( May 1564 – 4 October 1637) was an English nobleman.
He was the son of Denzil Holles of Irby upon Humber and Eleanor Sheffield( daughter of Edmund Sheffield, 1st Baron Sheffield of Butterwick.
His great- grandfather was William Hollyes, Lord Mayor of London.
He was born at Haughton Hall, Nottinghamshire and educated at Christ's College, Cambridge from 1579, aged 12, after which he studied law at Gray's Inn from 1583.
He was at Court until 1599.
Holles married Anne Stanhope( daughter of Sir Thomas Stanhope) on 23 May 1591 in Shelford, Nottinghamshire.
Through his marriage to Anne, he inherited Thurland Hall in Nottingham which was later known as Clare Place.
The family seat was at Haughton Hall in the parish of Bothamsall, which was demolished in the late eighteenth century.
He served as High Sheriff of Nottinghamshire for 1591 – 92.
He was comptroller of the household of Prince Henry until the prince's death on 6 November 1612.
He was Member of Parliament for Nottinghamshire from 1604 to 1611 and from 1614 to 1616.
He was created 1st Baron Haughton on 9 July 1616 and 1st Earl of Clare on 2 November 1624.
He died at home in Nottingham and is buried in St. Mary's Church, Nottingham.
He had 6 sons and 4 daughters.
Sir Charles Herbert Sheffield, 1st Baronet
Sir Charles Herbert Sheffield, 1st Baronet( c. 1706–1774) of Normanby, Lincolnshire, England, was an illegitimate son of John Sheffield, 1st Duke of Buckingham and Normanby and the first of the Sheffield baronets, and the owner of Buckingham Palace( then known as Buckingham House) who sold it to King George III.
Humphrey de Bohun, 2nd Earl of Hereford
Humphrey( IV) de Bohun( 1204 – 24 September 1275) was 2nd Earl of Hereford and 1st Earl of Essex, as well as Constable of England.
He was the son of Henry de Bohun, 1st Earl of Hereford, and Maud FitzGeoffrey.

Question: What is the date of death of Edmund Sheffield, 1St Earl Of Mulgrave's father?