Person:John Beaufort (64)

John "Fairborn" Beaufort, 1st Earl of Somerset
d.16 Mar 1410 Middlesex, England
m. Bet 13 Jan 1396 and 1397
  1. John "Fairborn" Beaufort, 1st Earl of Somerset1373 - 1410
  2. Blanche BeaufortAbt 1373 - Bef 1397
  3. Joan Beaufort, Countess of Westmorland1375 - 1440
  4. Cardinal Henry BeaufortAbt 1376 - 1447
  5. Sir Thomas Beaufort, Earl of Dorset, Duke of Exeter, Captain of Calais, Lord Chancellor, K.G.Abt 1377 - 1426
  • HJohn "Fairborn" Beaufort, 1st Earl of Somerset1373 - 1410
  • WMargaret de HollandAbt 1385 - 1439
m. Bef 28 Sep 1397
  1. Joan Beaufort, Queen of ScotlandAbt 1397 - 1445
  2. Henry Beaufort, 2nd Earl of Somerset1401 - 1418
  3. John Beaufort, 1st Duke of Somerset1404 - 1444
  4. Thomas Beaufort, Count of PercheEst 1405 - 1431
  5. Edmund Beaufort, 2nd Duke of Somerset1406 - 1455
  6. Margaret Beaufort, Countess of DevonAbt 1409 - 1449
Facts and Events
Name[11] John "Fairborn" Beaufort, 1st Earl of Somerset
Gender Male
Alt Birth[2][3][4][10] 1371 Beaufort, Maine-et-Loire, Pays de la Loire, France
Birth[1] 1373 Lincolnshire, EnglandPottersgate? House of Beaufort
Alt Birth? 1373 Beaufort, Maine-et-Loire, Pays de la Loire, France
Marriage Bef 28 Sep 1397 Up Holland, Lancashire, England"of Up Holland"
to Margaret de Holland
Title (nobility)? 1396/97 Created Earl of Somerset
Title (nobility)? 1397 Marquess of Dorset
Title (nobility)? 1397 Marquess of Somerset
Title (nobility)? 1399 Degradation> By Parliament he was degraded from the Marquessate of Dorset
Will[9] 16 Mar 1409 London, London, England
Military? Appointments> Admiral of the Fleet in the West and North.
Military? Battles and Wars> Joined the crusade of Louis II, Duke of Bourbon, to Barbary, 1390; present at the siege of Medediah, southwest of Tunis; in Lithuania, engaged in the Crusade organized by the Teutonic knights, 1394.
Property? Granted by his father, John of Gaunt, the manor of Overston, Northamptonshire. Held the manor of Sampford Peverell, Devon. Held the manor of Aller Peverell, Devon
Residence? Château de Beaufort, Goudet, Haute-Loire, France
Death[1] 16 Mar 1410 Middlesex, EnglandSt Katharine's by the Tower
Burial? Canterbury Cathedral, Canterbury, Kent, EnglandSt. Michael's Chapel
Probate[9] 5 Apr 1410
Probate? Died testate.
Other? Kinship: Illegitimate son - legitimized 9 Feb 1396/1397.
Other? Office: King's knight.
Other? Office: Constable of Wallingford Castle; of Dover Castle; of Corfe Castle.
Other? Office: Warden of the Cinque Ports.
Other? Office: Chamberlain of England.
Other? Office: Captain of Calais.
Other? Office: King's Lieutenant of South Wales.
Other? Office: Constable of England.
Other? Honors: Knighted. (K.G.) Knight of the Order of the Garter.
Reference Number? Q544076?

the text in this section is copied from an article in Wikipedia

John Beaufort, 1st Marquess of Somerset and 1st Marquess of Dorset, later only 1st Earl of Somerset, (c. 1373 – 16 March 1410) was an English nobleman and politician. He was the first of the four illegitimate children of John of Gaunt (1340–1399) (third surviving son of King Edward III) by his mistress Katherine Swynford, whom he later married in 1396.

The Beaufort children were declared legitimate twice by parliament, first during the reign of King Richard II of England, in 1397, which was confirmed by Henry IV, as well as by Pope Boniface IX in September 1396. Even though they were the grandchildren of Edward III and next in the line of succession after their father's legitimate children by his first two wives, the Beauforts were barred from succession to the throne by their half-brother Henry IV.

Peerage of England
William de Mohun of Dunster

Dormant with his death

Second Creation


Earl of Somerset


Henry Beaufort, 2nd Earl of Somerset

his son

John Beaufort, 3rd Earl, 1st Duke

his son

Marquess of Somerset
New Creation Marquess of Dorset

  1. 1.0 1.1 John Beaufort, 1st Earl of Somerset, in Wikipedia: The Free Encyclopedia.
  2. Weis, Frederick Lewis; Walter Lee Sheppard; and David Faris. Ancestral roots of certain American colonists, who came to America before 1700: the lineage of Alfred the Great, Charlemagne, Malcolm of Scotland, Robert the Strong, and some of their descendants. (Baltimore, Maryland: Genealogical Pub. Co., 7th Edition c1992)
    p. 3 line 1:31.

    John Beufort, by [John of Gaunt and (3) Catherine (Roet) Swynford], Earl and Marquis of Somerset, b. abt 1371/2 (in adultry by then mistress, Catherine; legitimated by statute, 1397); d. 21 Apr 1410; m. abt. 1397/9 Mararet de Holand (47-33), d. 30 Dec. 1439. Margaret m. (2) Thomas, Duke of Clarence. (CP IV: 416; CP VII; 415; CP XII (1):39-45 (see esp. p. 44 not h); Paget I:23; DNB Suppl. i, 158; Gens. 1-32: Moriarty, The Plantagenet Ancestry). John is the grandson of Edward III of England, and the line descends, through son Edmund, down to American colonists Edward Pelham and his half-sister Penelope Pelham Winslow.

  3. Weis, Frederick Lewis, and Walter Lee Sheppard. The Magna Charta sureties, 1215: the barons named in the Magna Charta, 1215 and some of their descendants who settled in America. (Baltimore [Maryland]: Genealogical Pub. Co., Unknown edition (1955-1999))
    p. 111 line 90:9.
  4. Richardson, Douglas. Plantagenet ancestry : a study in colonial and medieval families. (Baltimore, Maryland: Genealogical Publishing Co Inc, c2004)
    p. 14 BEAUFORT:11.

    See also p. xxix, p.186 HOLAND:8.ii, p. 205 LANCASTER:10.iii

  5.   Cokayne, George Edward, and Vicary Gibbs; et al. The complete peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, extant, extinct, or dormant [2nd ed.]. (London: St. Catherine Press, 1910-59)
    vol. 2 p. 378.
  6.   John De Beaufort Somerset, in Find A Grave.
  7.   John de Beaufort, 1st Earl of Somerset, in Lundy, Darryl. The Peerage: A genealogical survey of the peerage of Britain as well as the royal families of Europe.
  8.   JOHN Beaufort, son of JOHN "of Gaunt" Duke of Lancaster & his third wife Katharine Swynford née Roët ([1371]-Hospital of St Katherine by the Tower, London 16 Mar 1410, bur Canterbury Cathedral), in Cawley, Charles. Medieval Lands: A prosopography of medieval European noble and royal families.
  9. 9.0 9.1 Nichols, John. A collection of all the wills, now known to be extant, of the kings and queens of England, princes and princessess of Wales, and every branch of the blood royal: from the reign of William the Conqueror to that of Henry the Seventh, exclusive, with explanatory notes and a glossary. (London: J. Nichols, 1780)
    pages 208 to 211.

    The will can be read here (in Latin).

  10. Born before the death of his mother's 1st husband on 13 Nov 1371; aged about 21 years in 1392
  11. Given the surname of BEAUFORT from his father's (lost) castle in Champagne which had devolved on him through his 1st wife: See 'Plantagenet Ancestry of Seventeenth-Century Colonists', 2nd ed. p. 14 BEAUCHAMP:11.
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