Gilbert Kymer
Gilbert Kymer( died 1463) was Dean of Salisbury Cathedral, Chancellor of Oxford University, and a physician.
Kymer was educated at the University of Oxford.
He was a proctor of the University( 1412 – 13) and Principal of Hart Hall, Oxford( 1412 – 14).
He was twice Chancellor of Oxford University.
In 1423, Kymer attempted to found a conjoint college of surgeons and physicians with John Somerset and Thomas Morstede.
The plans for this collapsed in November 1424.
In 1427, Kymer became Dean of Wimborne Minster( in Dorset).
In 1449, he became Dean of Salisbury( in Wiltshire), where he occupied Leaden Hall.
He was the physician in the household of Humphrey of Lancaster, 1st Duke of Gloucester.
He attended King Henry VI as a physician in 1455.
Humphrey, Duke of Gloucester
Humphrey of Lancaster, Duke of Gloucester (3 October 139023 February 1447) was an English prince, soldier, and literary patron.
He was (as he styled himself) "
son, brother and uncle of kings", being the fourth and youngest son of Henry IV of England, the brother of Henry V, and the uncle of Henry VI.
Gloucester fought in the Hundred Years' War and acted as Lord Protector of England during the minority of his nephew.
A controversial figure, he has been characterised as reckless, unprincipled, and fractious, but is also noted for his intellectual activity and for being the first significant English patron of humanism, in the context of the Renaissance.
Unlike his brothers, Humphrey was given no major military command by his father, instead receiving an intellectual upbringing.
Created Duke of Gloucester in 1414, he participated in Henry V's campaigns during the Hundred Years' War in France: he fought at Agincourt in 1415 and at the conquest of Normandy in 1417–9.
Following the king's death in 1422, Gloucester became one of the leading figures in the regency government of the infant Henry VI.
He proved a rash, impulsive, unscrupulous, and troublesome figure: he quarreled constantly with his brother, John, Duke of Bedford, and uncle, Cardinal Henry Beaufort, and went so far as to violently prosecute a dispute with the Duke of Burgundy, a key English ally in France, over conflicting claims to lands in the Low Countries.
At home, Gloucester never fully achieved his desired dominance, while his attempts to gain a foreign principality for himself were fruitless.
A staunch opponent of concessions in the French conflict, and a proponent of offensive warfare
, Gloucester increasingly lost favour among the political community, and King Henry VI himself after the end of his minority, following a series of setbacks on the war in France.
The trial in 1441 of Eleanor Cobham, his second wife, under charges of witchcraft, destroyed Gloucester's political influence.
In 1447, he himself was accused, probably falsely, of treason, and died a few days later while under arrest.
Humphrey was the exemplar of the romantic chivalric persona.
Mettled and courageous, he was a foil for the princess Jacqueline of Hainaut, his first wife.
His learned, widely read, scholarly approach to the early renaissance cultural expansion demonstrated the quintessential well-rounded princely character.
He was a paragon for Eton College and an exemplar for the University of Oxford, accomplished, diplomatic, with political cunning.
Unlike his brothers, he was not naturally brave, but opinionated, fervent and judgmental.
He exaggerated his own achievements, but idolized his brother Henry V. Despite the errors in both his public and private life, and the mischief he caused in politics, Gloucester is also at times praised as a patron of learning and a benefactor to the University of Oxford.
He was popular among the literary figures of his age for his scholarly activity, and with the common people for his advocacy of a spirited foreign policy.
For these causes he was known as the "good Duke Humphrey".
Elizabeth of Lancaster, Duchess of Exeter
Elizabeth of Lancaster( bf. 21 February
1363 – 24 November 1426) was the third child of John of Gaunt, 1st Duke of Lancaster, and his first wife Blanche of Lancaster.
Henry Scott, 3rd Duke of Buccleuch
Henry Scott, 3rd Duke of Buccleuch and 5th Duke of Queensberry KG FRSE( 2 September 174611 January 1812) was a Scottish nobleman and long- time friend of Sir Walter Scott.
He is the paternal 3rd great- grandfather of Princess Alice, Duchess of Gloucester, and the maternal 4th great- grandfather of Prince William of Gloucester and Prince Richard, Duke of Gloucester.
Much of the family's lands and wealth were accumulated during Henry's tenure as Duke.
He integrated the surnames" Montagu" and" Douglas" with the Scott family name to form the unhyphenated compound surname" Montagu Douglas Scott".
Henry IV of England
Henry IV (15 April 1367 – 20 March 1413), also known as Henry Bolingbroke , was King of England from 1399 to 1413.
He asserted the claim of his grandfather King Edward III, a maternal grandson of Philip IV of France, to the Kingdom of France.
Henry was the son of John of Gaunt (the fourth son of Edward III) and Blanche of Lancaster.
John enjoyed a position of considerable influence during much of the reign of his nephew King Richard II, whom Henry eventually deposed.
Henry founded the Lancaster branch of the House of Plantagenet.
He was the first King of England since the Norman Conquest whose mother tongue was English rather than French.
Antigone of Gloucester, Countess of Tankerville
Antigone of Gloucester was an English noblewoman and the illegitimate daughter of Humphrey of Lancaster, 1st Duke of Gloucester( 1390 – 1447).
She was the granddaughter of King Henry IV.
She is thought to have been born between 1425 and 1428.
Her date of death is not known, but it was later than 1450.
Charles Lennox, 1st Duke of Richmond
Charles Lennox, 1st Duke of Richmond, 1st Duke of Lennox, 1st Duke of Aubigny( 29 July 167227 May 1723), of Goodwood House near Chichester in Sussex, was an illegitimate son of King Charles II by his mistress Louise de Kérouaille, Duchess of Portsmouth.
William Montagu Douglas Scott, 6th Duke of Buccleuch
William Henry Walter Montagu Douglas Scott, 6th Duke of Buccleuch and 8th Duke of Queensberry( 9 September 1831 – 5 November 1914) was a Scottish Member of Parliament and peer.
He was the paternal grandfather of Princess Alice, Duchess of Gloucester, and the maternal great- grandfather of Prince William of Gloucester and Prince Richard, Duke of Gloucester.
He was a paternal great- great- grandfather to Sarah, Duchess of York.
Richard Wesley, 1st Baron Mornington
Richard Colley Wesley, 1st Baron Mornington (– 31 January 1758) was an Irish peer, best remembered as the grandfather of Arthur Wellesley, 1st Duke of Wellington.
James FitzJames, 1st Duke of Berwick
James FitzJames, 1st Duke of Berwick, 1st Duke of Liria and Jérica, 1st Duke of Fitz- James( 21 August 1670 – 12 June 1734) was an Anglo- French military leader, illegitimate son of King James II of England by Arabella Churchill, sister of the 1st Duke of Marlborough.
Berwick was a successful general in the pay of Louis XIV of France.

Question: Who is the paternal grandfather of Humphrey, Duke Of Gloucester?
Answer: John of Gaunt