John Mowbray, 3rd Duke of Norfolk
John Mowbray, 3rd Duke of Norfolk, KG, Earl Marshal (12 September 14156 November 1461) was a fifteenth-century English magnate who, despite having a relatively short political career, played a significant role in the early years of the Wars of the Roses.
Mowbray was born in 1415, the only son and heir of John de Mowbray, 2nd Duke of Norfolk, and Katherine Neville.
He inherited his titles upon his father's death in 1432.
As a minor he became a ward of King Henry VI and was placed under the protection of Humphrey, Duke of Gloucester, alongside whom Mowbray would later campaign in France.
He seems to have had an unruly and rebellious youth.
Although the details of his misconducts are unknown, they were severe enough for the King to place strictures upon him and separate him from his followers.
Mowbray's early career was spent in the military, where he held the wartime office of Earl Marshal.
Later he led the defence of England's possessions in Normandy during the Hundred Years' War.
He fought in Calais in 1436, and during 1437–38 served as warden of the east march on the Anglo-Scottish border, before returning to Calais.
Mowbray's marriage to Eleanor Bourchier in the early 1430s drew him into the highly partisan and complex politics of East Anglia, and he became the bitter rival of William de la Pole, Earl (later Duke) of Suffolk.
Mowbray prosecuted his feuds with vigour, often taking the law into his own hands.
This often violent approach drew the disapproving attention of the Crown, and he was bound over for massive sums and imprisoned twice in the Tower of London.
His enemies, particularly de la Pole, also resorted to violent tactics.
As a result, local gentry looked to Mowbray for leadership, but often in vain; De la Pole was a powerful local force and favourite of the King, while Mowbray was neither.
As law and order collapsed in eastern England, national politics became increasingly factional, with popular revolts against the King's councillors.
Richard, Duke of York, who by the 1450s felt excluded from government, grew belligerent.
He rebelled twice, and both times Mowbray defended King Henry.
Eventually Mowbray drifted towards York, with whom he shared an enmity towards de la Pole.
For much of the decade, Mowbray was able to evade direct involvement in the fractious political climate, and aligned with York early in 1460 until York's death later that year.
In April 1461, Mowbray was instrumental in Edward's victory at the Battle of Towton, bringing reinforcements late in the combat.
He was rewarded by the new regime but did not live to enjoy it.
He died in November 1461, and was succeeded as Duke of Norfolk by his only son, John.
Thomas Howard, 2nd Duke of Norfolk
Thomas Howard, 2nd Duke of Norfolk( 144321 May 1524), styled Earl of Surrey from 1483 to 1485 and again from 1489 to 1514, was an English nobleman and politician.
He was the eldest son of John Howard, 1st Duke of Norfolk, by his first wife, Catharina de Moleyns.
The Duke was the grandfather of both Queen Anne Boleyn and Queen Catherine Howard and the great grandfather of Queen Elizabeth I.
He served four monarchs as a soldier and statesman.
Eleanor de Mowbray
Eleanor de Mowbray (before 1361 – before 13 August 1417) was the daughter of John de Mowbray, 4th Baron Mowbray, and Elizabeth de Segrave, 5th Baroness Segrave (born 25 October 1338), daughter and heiress of John de Segrave, 4th Baron Segrave.
She had two brothers and two sisters:
Eleanor de Mowbray's father, the 4th Baron, was slain by the Turks at Thrace on 17 June 1368.
She died before 13 August 1417, when her husband, the 5th Baron, married a second wife named Margaret (d. 8 April 1426), whose surname is unknown.
John de Mowbray, 2nd Baron Mowbray
John( I) de Mowbray, 2nd Baron Mowbray( 4 September 1286 – 23 March 1322) was the son of Roger de Mowbray, 1st Baron Mowbray.
Lord of the manors of Tanfield and Well, Yorkshire.
De Mowbray served in the Scottish wars of Edward I.
The baron held such offices as sheriff of Yorkshire, governor of the city of York, a warden of the Scottish marches, governor of Malton and Scarborough Castles.
He took part in the rebellion of Thomas, Earl of Lancaster.
He was captured at the battle of Boroughbridge and subsequently hanged at York.
John de Mowbray married Aline de Braose,( b. 1291 d. ca 1331), daughter of William de Braose, 2nd Baron Braose and Lord of Gower.
They had at least two sons: John de Mowbray was buried at Fountains Abbey.
John de Mowbray, 4th Duke of Norfolk
John de Mowbray, 4th Duke of Norfolk, (18 October 144414 January 1476), known as 1st Earl of Surrey between 1451 and 1461, was the only son of John de Mowbray, 3rd Duke of Norfolk and Eleanor Bourchier.
His maternal grandparents were William Bourchier, Count of Eu and Anne of Gloucester.
In 1451 the earldom of Surrey was revived for him.
Mowbray was descended from a sister of the last earl of the previous creation.
In 1461 he succeeded his father as 4th Duke of Norfolk and hereditary Earl Marshal.
He continued his father's efforts to possess Caister Castle, finally taking it in September 1469 after a siege.
John Paston had inherited Caister from John Fastolf in 1459 and was in charge of defending it.
Although Paston had been in Mowbray's service for several years, Mowbray showed a notable ruthlessness in his conduct of the siege, in which one Daubenay, a long-standing Paston servant, was killed.
Under pressure from the Church, Norfolk did at least grant the other defenders a safe conduct.
In 1476, within a day of Norfolk's death, the Paston family took Caister back again.
Norfolk was invested as a Knight of the Garter in 1472.
He died very suddenly, having apparently been in good health the day before.
He married Elizabeth Talbot, daughter of John Talbot, 1st Earl of Shrewsbury and his second wife Lady Margaret Beauchamp.
They had only one child, Anne de Mowbray, 8th Countess of Norfolk, and so
the 1397 creation of the dukedom became extinct upon his death.
Anne, who was only 3 years old when her father died, inherited the earldom and his extensive lands and wealth.
The dukedom would be recreated in 1481 and again in 1483.
The 1483 creation survives to the present day, despite two periods of forfeiture.
Thomas de Mowbray, 4th Earl of Norfolk
Thomas de Mowbray, 4th Earl of Norfolk, 2nd Earl of Nottingham, 8th Baron Segrave, 7th Baron Mowbray( 17 September 1385 – 8 June 1405), English nobleman and rebel, was the son of Thomas de Mowbray, 1st Duke of Norfolk and Lady Elizabeth FitzAlan.
Upon the death of his father in Venice, he succeeded him as Earl of Norfolk and Nottingham, but not as Duke of Norfolk.
He also received his father's title of Earl Marshal, but on a strictly honorary basis, the military rank being held by Ralph Neville, 1st Earl of Westmorland as the Marshal of England.
He was betrothed to Constance Holland, daughter of John Holland, 1st Duke of Exeter, then a child, but the marriage was never consummated.
He became involved with the latest rebellion of the Percies in the north, and raised an army with Richard le Scrope, Archbishop of York.
Deserted by the Earl of Northumberland, Norfolk and Scrope were brought to book on Shipton Moor by a large royal army under John of Lancaster and the Earl of Westmorland.
Seeking a parley, they were arrested as soon as they disbanded their followers.
When Chief Justice Sir William Gascoigne refused to pass sentence upon them before they were tried by their peers, Henry had both Norfolk and Scrope summarily beheaded in York on 8 June 1405.
This conspiracy is the main historical context for Shakespeare's" Henry IV, Part 2", and the execution is described with the words" Some guard these traitors to the block of death,/ Treason's true bed and yielder up of breath."
Upon his death, Thomas de Mowbray was succeeded by his younger brother, John de Mowbray, 2nd Duke of Norfolk.
He was buried in the Church of the Greyfriars in York.
His head was displayed for two months on a pike at Bootham Bar before it was taken down and reunited with the body.
Legend had it that the head retained the freshness of life.
John de Mowbray, 4th Baron Mowbray
John( III) de Mowbray, 4th Baron Mowbray( 24 June 1340 – 19 October 1368) was an English peer.
He was slain near Constantinople while en route to the Holy Land.
Charles Lennox, 4th Duke of Richmond
Charles Lennox, 4th Duke of Richmond, 4th Duke of Lennox, 4th Duke of Aubigny,( 9 December 176428 August 1819) was a Scottish peer, soldier, politician, and Governor General of British North America.
Roger de Mowbray, 1st Baron Mowbray
Roger de Mowbray, 1st Baron Mowbray (1254 – 21 November 1297), was an English peer and soldier.
The son of another Roger de Mowbray, and grandson of William de Mowbray, he served in the Welsh and Gascon Wars.
He was summoned to the Parliament of Simon de Montfort in 1265, but such summonses have later been declared void.
However, in 1283 he was summoned to Parliament by King Edward I as Lord Mowbray.
De Mowbray married Rose, a daughter of Richard de Clare, 6th Earl of Gloucester.
They had at least two children:
Roger de Mowbray was buried in Fountains Abbey.
John de Mowbray, 1st Earl of Nottingham
John( IV) de Mowbray, 1st Earl of Nottingham, 5th Baron Mowbray, 6th Baron Segrave( 1 August 1365 – 12 January 1383), was an English peer.
Born 1 August 1365 at Epworth in the Isle of Axholme, Lincolnshire, John de Mowbray was the elder son of John de Mowbray, 4th Baron Mowbray, and Elizabeth Segrave.
He had a younger brother, Thomas de Mowbray, 1st Duke of Norfolk, and three sisters, Eleanor, Margaret and Joan( for details concerning his siblings, see the article on his father, John de Mowbray, 4th Baron Mowbray).
He was styled' cousin' by John of Gaunt, 1st Duke of Lancaster.
At the death of his mother in 1368, Mowbray is said to have become Baron Segrave.
However he had little financial benefit from his inheritance as a result of the very large jointure which had been awarded to Elizabeth Segrave's mother, Margaret, Duchess of Norfolk, who lived until 1399.
In 1368 he also succeeded to the barony of Mowbray when his father was slain by the Turks near Constantinople while en route to the Holy Land.
In April 1372, custody of both John and his brother Thomas was granted to Blanche Wake, a sister of their grandmother, Joan of Lancaster.
On 23 April 1377, he was knighted in company with the future Richard II and the future Henry IV when the latter two noblemen were made Knights of the Bath.
When Richard II was crowned on 16 July 1377, Mowbray was created Earl of Nottingham.
As joint tenants of the estates of William Beauchamp of Bedford, he and William Latimer, 4th Baron Latimer successfully claimed the right to serve as Almoner at the coronation.
Mowbray died before 12 February 1383, aged seventeen and unmarried, and was buried at the Whitefriars in Fleet Street, London.
The earldom of Nottingham became extinct at his death.
He was succeeded in the barony of Mowbray by his younger brother, Thomas de Mowbray, 1st Duke of Norfolk, who subsequently became Earl of Nottingham on 12 January 1386 by a new creation of the earldom.

Question: Who is John De Mowbray, 4Th Duke Of Norfolk's paternal grandfather?
Answer: John de Mowbray, 2nd Duke of Norfolk