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Edward III Plantagenet King of England [2367]
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John of Gaunt Plantagenet 1st Duke of Lancaster, King of Castile and Leon. [3685]


Family Links

1. Blanche of Lancaster Plantagenet Countess of Derby [8810]

2. Constenza "Constance"Perez of Castlile and Leon Queen of Castile [2425] [9Z4T-P8Z]
3. Katherine Swynford de Roet [2423] [939F-C26]
4. Marie De St. Hilare [2422] [9CS4-7F1]

John of Gaunt Plantagenet 1st Duke of Lancaster, King of Castile and Leon. [3685] 24

  • Born: Mar 1340, Abbays DE St Bav, Ghent, Flandre-Oriental. Belgium 442
  • Marriage (1): Blanche of Lancaster Plantagenet Countess of Derby [8810] on 19 May 1359 in Reading Abbey, Berkshire, England 442
  • Marriage (2): Constenza "Constance"Perez of Castlile and Leon Queen of Castile [2425] [9Z4T-P8Z] on 21 Sep 1371 in Roquefort, Guienne 442
  • Marriage (3): Katherine Swynford de Roet [2423] [939F-C26] on 13 Jan 1396 in Lincoln Cathedral, Lincolnshire, England
  • Marriage (4): Marie De St. Hilare [2422] [9CS4-7F1]
  • Died: 3 Feb 1399, Leicester Castle, Leicester, Leicestershire, England at age 58 442
  • Buried: 15 Mar 1399, St. Paul's Cathedral, London, Greater London, England 442

bullet  General Notes:



John "of Gaunt" PLANTAGENET (1 D. Lancaster)

Acceded: 13 Nov 1362

Knight of the Garter. Earl of Richmond. Some say born Jun 1340, but see CP vol.XIV,p.421. Earl of Derby, Lincoln. Duke of Aquitaine. Lord of Beaufort & Nogent. Burke says he died at Ely House, Holborn. King of Castilla & Leon. Lord of Bergerac & Roche-sur-Yon. The Complete Peer age vol.VII,pp.410-416 & vol.XIV,p.421.
Reigned as Duke Of Lancaster. King Of Castile And Leon

and Earl of Richmond. Some say born Jun 1340, but see CP vol.XIV,p.421.
Earl of Derby, Lincoln. Duke of Aquitaine. Lord of Beaufort & Nogent.
Burke says he died at Ely House, Holborn
King of Castile & Leon. Lord of Bergerac & Roche-sur-Yon.

The Complete Peerage vol.VII,pp.410-416 & vol.XIV,p.421.

Prince John of Gaunt, the fourth son of King Edward III and Queen Philippa, was born at Ghent (alias Gaunt) in Flanders, in 1340. In his infancy, he was created Earl of Richmond and, by that title, admitted into the Order of the Garter upon the death of Thomas Holland, Earl of Kent, one of the original knights. In 1359, at Reading Abbey <> in Berkshire, he married Blanche, the younger of the two daughters and co-heirs of Henry, Duke of Lancaster, and upon the death of his father-in-law, in 1361, he was advanced to that Dukedom. He further held, in right of his wife, the Earldoms of Derby, Lincoln and Leicester, and the high office of Steward of England.
Blanche, dying in 1369, the ambition of the Duke - who had taken an active part in the war carried on by the his brother, Black Prince, for the restoration of Peter, King of Castile & Leon - induced him to direct his views towards Constance, the elder of the two daughters of that monarch, then lately slain by his illegitimate brother, Henry of Transtamare, his successor under the title of Henry II. In 1372, the Duke married this princess and thus assumed the regal style of those kingdoms. These titular honours were ascribed to him in the writs of summons to Parliament from that year until 1386, when, by an arrangement with King John I of Castile & Leon, the son and successor of Henry, Catherine, the only daughter of the Duke of Lancaster by Constance, was betrothed to Henry, Prince of Asturias, his heir-apparent, and the crown settled upon the issue of that alliance.
Although John of Gaunt had been engaged in warlike enterprises from his earliest years, yet his martial achievements did not increase the lustre of British glory or secure for himself the character of a great commander. In three expeditions into France, in 1369, 1370 and 1373, he gained no laurels and the peculiar misfortunes which attended the last, when a considerable number of his followers perished amongst the mountains of Auvergne, rendered him very unpopular on his return to England in July 1374. All Guienne and Gascony, with the exception of the towns of Bordeaux and Bayonne, had fallen from their allegiance and a suspension of hostilities was negotiated at Bruges, by the Duke and others, with the Duke of Anjou, before the expiration of that year.
After the death of the Black Prince, in 1376, the Duke of Lancaster acquired a marked ascendency in the councils of the infirm monarch, his father. His administration of public affairs is said, furthermore, to have been stained by several acts of violence. On the 16th June 1386, "at the palace of John of Gaunt, King of Castile & Leon, in the convent of the Friars Carmelites, at Plymouth" (where he was then sojourning prior to his embarkation for Spain), he gave his remarkable testimony in favour of the right of Sir Richard Scrope to the arms borne by him in the celebrated controversy between Scrope and Sir Robert Grosvenor. John continued to govern the Kingdom during the minority of his nephew, Richard II , by whom, in 1389, he was created Duke of Aquitaine. His power increasing, he proffered, in open parliament, a claim to the succession for his son, Henry Bolingbroke (later King Henry IV , as son to Blanche, great-grandaughter of Edmund Crouchback, Earl of Lancaster, whom, he pretended, had been elder brother to King Edward I, but set aside on account of his deformity. The weakness of this pretension, which, if established, would have been fatal to the reigning monarch, was opposed, without difficulty, by Roger Mortimer, Earl of March, who, as son and heir of Philippa, the daughter and heir of his elder brother, Lionel, Duke of Clarence, had, by the laws of the empire, an indisputably prior right and was, accordingly, declared the presumptive heir to the crown.
The Duchess Constance dying in 1394, John espoused, in 1396, Catherine, daughter of Sir Paine Roet, Guienne King of Arms, and widow of Sir Hugh Swynford, a knight of Lincolnshire. This lady had been of the household of the Duchess Blanche and charged with the education of the ladies Philippa and Elizabeth during their minority.
On the 3rd February 1399, John of Gaunt, Duke of Lancaster, died in Leicester Castle. Conforming to his will, dated the same day, his body was interred before the high altar of Old St. Paul's Cathedral, near the remains of Blanche, his first consort.
By his first consort, Blanche of Lancaster, he had issue:
1. Henry, Duke of Hereford & Lancaster and Earl of Derby, afterwards King Henry IV.
2. Philippa, married to John I, King of Portugal. Seven kings pf her issue governed that country.
3. Elizabeth, married, firstly, to John Holland, Duke of Exeter, and, secondly, Sir John Cornwall Lord Fanhope.
By his second consort, Constance of Castile, John of Gaunt had an only daughter, Catherine, wife of Henry, Prince of Asturias, afterwards Henry III, King of Castile & Leon. The descendants of this alliance were on the throne of Spain until King Charles II, who died in 1700.
His issue, before his marriage to his third consort, Catherine Swynford, were legitimated by Act of Parliament, 9th February 1397. They were all surnamed 'De Beaufort,' having been born at Beaufort Castle in France, which had devolved to the Huse of Lancaster by the marriage of Blanche of Artois with Edmund, Earl of Lancaster. They were:
1. John Beaufort, Earl of Somerset and Marquis of Dorset, KG
2. Henry Beaufort <>, Bishop of Lincoln, afterwards of Winchester, and, at length, Cardinal and Chancellor of England
3. Thomas Beaufort, Duke of Exeter, KG
4. Joan Beaufort, married, firstly, to Sir Robert Ferrers of Worn and Oversley; and, secondly, to Ralph Neville, Earl of Westmorland. Her grandsons included Richard, Earl of Warwick <> 'the Kingmaker,' Kings Edward IV and Richard III.
Edited from George Frederick Beltz's 'Memorials of the Most Noble Order of the Garter' (1841)


bullet  Noted events in his life were:

Acceded, 13 Nov 1362.


John married Blanche of Lancaster Plantagenet Countess of Derby [8810] [MRIN: 537], daughter of Henry Grosment of Derby Plantagenet 1st Duke Lancaster [5316] and Isabel de Beaumont [8812], on 19 May 1359 in Reading Abbey, Berkshire, England.442 (Blanche of Lancaster Plantagenet Countess of Derby [8810] was born on 25 Mar 1341 in Lancaster, Lancasshire, England,442 died on 12 Sep 1368 in Bolingbroke Castle, Lincoln 442 and was buried in St.Paul's Cathedral, London, England.). The cause of her death was died of the black death.


John next married Constenza "Constance"Perez of Castlile and Leon Queen of Castile [2425] [9Z4T-P8Z] [MRIN: 489], daughter of Peter the Cruel of Castile King of Castile and Len [3571] [9SR5-K28] and Maria de Padilla [3572] [MMND-3YY], on 21 Sep 1371 in Roquefort, Guienne.442 (Constenza "Constance"Perez of Castlile and Leon Queen of Castile [2425] [9Z4T-P8Z] was born in 1354 in Castrojeriz, Castile,442 died on 24 Mar 1394 in Leicester Castle, Leicester, Leicestershire, England 442 and was buried in Newark Abbey, Leicester, Leicestershire, England 442.)


John next married Katherine Swynford de Roet [2423] [939F-C26] [MRIN: 486], daughter of Sir Payne of Guienne Rot King at Arms [8826] and Unknown, on 13 Jan 1396 in Lincoln Cathedral, Lincolnshire, England. (Katherine Swynford de Roet [2423] [939F-C26] was born on 25 Nov 1350 in Picardy, Hainault, France, died on 10 May 1403 in Lincoln, Lincolnshire, England and was buried in Lincoln Cathedral, Lincolnshire, England.)


John next married Marie De St. Hilare [2422] [9CS4-7F1] [MRIN: 485]. (Marie De St. Hilare [2422] [9CS4-7F1] died after 1399.)

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