Elizabeth de Burgh, 4th Countess of Ulster
Elizabeth de Burgh, Duchess of Clarence," suo jure" 4th Countess of Ulster and 5th Baroness of Connaught( 6 July 1332 – 10 December 1363) was a Norman- Irish noblewoman who married Lionel of Antwerp, 1st Duke of Clarence.
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.
Constance of Castile, Duchess of Lancaster
Constance of Castile( 1354 – 24 March 1394) was claimant of the Castilian throne after the death of her father Peter, King of Castile and León, also known as Peter the Cruel.
Her mother was María de Padilla, whom Peter had secretly married, but was then forced to repudiate; however he kept her as his mistress.
Constance was married, at Roquefort, near Bordeaux, Guienne, on 21 September 1371, to John of Gaunt, 1st Duke of Lancaster, who was the third son of Edward III of England and Philippa of Hainault, as his second wife.
Constance's younger sister, Infanta Isabella, married Edmund of Langley, 1st Duke of York, the fourth son of King Edward III and Queen Philippa.
On 9 February 1372 Constance made a ceremonial entry into London as Queen of Castile, accompanied by Edward, the Black Prince, and an escort of English and Castilian retainers and London dignitaries.
Crowds lined the streets to see her as she processed to the Savoy Palace in the Strand where she was ceremonially received by her husband, who had proclaimed himself King of Castile and León on 29 January.
This was the way for Gaunt to obtain a kingdom of his own( he had been offered Scotland as a youth by the childless David II but nothing came of this), as his nephew Richard II and the descendants of his brother Lionel of Antwerp, 1st Duke of Clarence, stood between him and the Crown of England.
John of Gaunt claimed the title of King of Castile" jure uxoris", and insisted that English nobles address him as" my lord of Spain", but was unsuccessful in his attempts to obtain the crown.
Their daughter Catherine of Lancaster was married to the king of the Trastámara line, Henry III of Castile, thus uniting these two rival claims.
Constance died at Leicester Castle and was buried at the Church of the Annunciation of Our Lady of the Newarke, Leicester.
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.
Ernest Blackie
Ernest Morell Blackie( 19 August 1867 – 1943) was an Anglican bishop in the 20th century.
Blackie was born in Leamington Spa and educated at Cheltenham Grammar School and the University of London.
Ordained in 1891, he was a curate at St Mark's Gloucester and then a minor canon at Rochester Cathedral until 1900.
He later became the rector of Limpsfield and then St Paul's York Place, Edinburgh before becoming the vicar of Windsor and an Honorary Chaplain to the King.
From 1921 to 1937 he was a residentiary canon at Lincoln Cathedral and for seven years a suffragan bishop in the Diocese of Lincoln( five as Suffragan Bishop of Grantham and two as Bishop of Grimsby) before his final appointment as Dean of Rochester, a position he held until his death in 1943.
In 1903 Blackie married Caroline Stewart, daughter of James Haldane Stewart Jr. and Emily Leveson- Gower of Titsey Place.
Her father was the son of James Haldane Stewart senior( the 19th century ecumenical prelate) and Mary Dale, daughter of David Dale.
Emily Leveson- Gower was a member of one of Britain's most aristocratic families and was a descendant of Thomas Howard, 4th Duke of Norfolk, Edmund Beaufort, 4th Duke of Somerset, Edward Seymour, 1st Duke of Somerset, Charles Brandon, 1st Duke of Suffolk, Henry Cavendish, 2nd Duke of Newcastle- upon- Tyne, Clarence, Thomas Tufton, 6th Earl of Thanet, George Plantagenet, 1st Duke of Clarence, Richard Neville, 16th Earl of Warwick or Warwick the Kingmaker William Russell, 1st Duke of Bedford and John Manners, 1st Duke of Rutland, William Cecil, 1st Baron Burghley, Thomas Cromwell, 1st Earl of Essex as well as Henry VII of England and James V of Scotland.
Elizabeth Mortimer
Elizabeth Mortimer, Baroness Camoys (12 February 1371 – 20 April 1417) was an English noblewoman, the granddaughter of Lionel of Antwerp, 1st Duke of Clarence, and great-granddaughter of King Edward III.
Her first husband was Sir Henry Percy, known to history as 'Hotspur'.
She married secondly Thomas Camoys, 1st Baron Camoys.
She is represented as 'Kate, Lady Percy,' in Shakespeare's "Henry IV, Part 1", and briefly again as 'Widow Percy' in "Henry IV, Part 2".
Lionel of Antwerp, 1st Duke of Clarence
Lionel of Antwerp, 1st Duke of Clarence, KG (29 November 133817 October 1368) was the third son, but the second son to survive infancy, of the English king Edward III and Philippa of Hainault.
He was named after his birthplace, at Antwerp in the Duchy of Brabant.
Lionel was born of a Flemish mother and was a grandson of William I, Count of Hainaut.
He grew to be nearly seven feet in height and had an athletic build.
Edmund of Langley, 1st Duke of York
Edmund of Langley, 1st Duke of York, KG (5 June 13411 August 1402) was the fourth surviving son of King Edward III of England and Philippa of Hainault.
Like many medieval English princes, Edmund gained his nickname from his birthplace: Kings Langley Palace in Hertfordshire.
He was the founder of the House of York, but it was through the marriage of his younger son, Richard of Conisburgh, 3rd Earl of Cambridge, to Anne de Mortimer, great-granddaughter of Edmund's elder brother Lionel of Antwerp, 1st Duke of Clarence, that the House of York made its claim to the English throne in the Wars of the Roses.
The other party in the Wars of the Roses, the incumbent House of Lancaster, was formed from descendants of Edmund's elder brother John of Gaunt, 1st Duke of Lancaster, Edward III's third son.
Philippa of Hainault
Philippa of Hainault (Middle French: "Philippe de Hainaut"; 24 June c.1310/15 – 15 August 1369) was Queen of England as the wife of King Edward III.
Edward promised in 1326 to marry her within the following two years.
She was married to Edward, first by proxy, when Edward dispatched the Bishop of Coventry "to marry her in his name" in Valenciennes (second city in importance of the county of Hainaut) in October 1327.
The marriage was celebrated formally in York Minster on 24 January 1328, some months after Edward's accession to the throne of England.
In August 1328, he also fixed his wife's dower.
Philippa acted as regent in 1346, when her husband was away from his kingdom, and she often accompanied him on his expeditions to Scotland, France, and Flanders.
Philippa won much popularity with the English people for her kindness and compassion, which were demonstrated in 1347 when she successfully persuaded King Edward to spare the lives of the Burghers of Calais.
This popularity helped maintain peace in England throughout Edward's long reign.
The eldest of her thirteen children was Edward, the Black Prince, who became a renowned military leader.
Philippa died at the age of fifty-six from an illness closely related to edema.
The Queen's College, Oxford was founded in her honour.
Ralph Basset, 3rd Baron Basset of Drayton
Ralph Basset, 3rd Baron Basset of Drayton( or alternatively 4th Baron Basset) KG( 1335 – 10 May 1390) was a medieval English soldier knight, one of the earliest appointed Knights of the Garter.
He was the son of Ralph Basset and his wife Alice, the daughter of Nicholas, Baron Audley.
His father predeceased his own father Ralph Basset, 2nd Baron Basset of Drayton in 1335 so Ralph junior thus succeeded his grandfather in 1343 to the title and estates at the age of 8.
In 1355 he was summoned to join the army of the Black Prince in the French campaign and in 1356 was present in the English victory at Poitiers.
On his return he was called to the House of Lords.
In 1359 he was with Edward III in France on his campaign to claim the French throne which ended with Peace of Brétigny the following year.
He was present at other French campaigns in 1365 and 1368, and in the latter year was admitted to the Order of the Garter to fill the empty place caused by the death of Lionel of Antwerp, 1st Duke of Clarence.
In 1369 he was back in France fighting in a diversionary campaign under the Duke of Lancaster.
On the accession of King Richard II in 1377 he was yet again ordered to France, serving firstly in an abortive campaign under Sir John Arundel and secondly under Thomas of Woodstock, 1st Duke of Gloucester.
In 1385 he was in a disastrous campaign in Spain with John of Gaunt.
He died without issue in 1390, leaving a widow Joan, and was interred in Lichfield cathedral.
His heirs were Thomas Stafford, 3rd Earl of Stafford and Alice, wife of Sir William Chaworth.

Question: What is the date of death of Lionel Of Antwerp, 1St Duke Of Clarence's mother?
Answer: 15 August 1369