Margaret de Montacute

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Margaret de Montacute (de Monthermer)

Birthplace: Saint Humbert, Stokenham, Devonshire, England
Death: March 24, 1393 (63)
Salisbury, Wiltshire, England
Place of Burial: Salisbury, Wiltshire, England
Immediate Family:

Daughter of Thomas, 2nd Baron de Monthermer and Baroness Margaret de Verdon (de Tibelot)
Wife of John de Montacute, 1st Baron Montacute
Mother of Sir Simon de Montagu; John Montacute, 3rd Earl of Salisbury; Eleanor Montagu; Sybil de Montagu, Nun; Katherine de Montagu and 5 others
Half sister of John de Verdun

Occupation: Baroness of Monthermer in her own right
Managed by: Private User
Last Updated:

About Margaret de Montacute

Margaret de Monthermer was born on 14 Oct 1329 in Saint Humbert, Stokenham, Devonshire, England. She died on 24 Mar 1394/1395 and is buried in Salisbury Cathedral, Salisbury, Wiltshire, England.

Parents: only daughter and heiress of Thomas [de Monthermer] (1301-1340), 2nd Baron Monthermer and Margaret (d. 1349), probably the widow of Henry Tyeys, Lord Tyeys.


  1. John de Montagu (d. 1389) (Montacute) on 2 Jul 1340 in of Saint Humbert, Stokenham, Devonshire, England.

They had the following children:

  1. John Montagu (Montacute) [Earl of Salisbury] was born in 1350. He died on 5 Jan 1399/1400.
  2. Simon de Montagu [Sir Knight] was born about 1353.
  3. Alianora de Montagu was born about 1357 in of,Salisbury,Wiltshire,England. She died after 1388.
  4. Sybil de Montagu was born about 1359 in of,Salisbury,Wiltshire,England. She died before 12 Oct 1420.
  5. Katherine de Montagu was born about 1361 in of,Salisbury,Wiltshire,England. She died after 1388.
  6. Margaret de Montagu was born about 1363. She died after 1388.
  7. Thomas de Montagu was born about 1365 in of,Salisbury,Wiltshire,England. He died on 31 Aug 1404.
  8. Richard de Montagu [Sir Knight] was born in 1369 in of, Salisbury, Wiltshire, England. He died on 12 Jun 1429.
  9. Robert de Montagu (Montacute) was born about 1373.


[John de Montacue] had three sons, John his heir (who became 3d Earl of Salisbury), Thomas Montague, and Richard Montague, of whose issue there is no trace. This Richard lived ABT the year 1400. None of the English genealogies make any further mention of him except to state his name. It is claimed that there was also a fourth son, whose name was Simon Montague, and from 'in the nobility of England of this name claim descent'. Collins' Peerage, however, states that there is no evidence that this Simon ever lived, and is inclined to the belief that the nobility are descended from James Montague, a natural son of Thomas, 4th Earl of Salisbury. This James Montague had large possessions in County Kent, where he was a man of distinction, and is buried in the Church of Ludsdown in Kent. [2]

The De Monthermer Brothers

Thomas was killed at Edward III's great naval victory over Philip VI of France at Sluys on 24 June 1340. He had married, in 1327 or thereabouts, a woman named Margaret, who is thought to have been the widow of Sir Henry Tyes, a Contrariant executed by Edward II in March 1322. (Douglas Richardson thinks Margaret was the daughter of one Piers de Braose.) Although Edward II is often criticised, not least by me, for his vindictive and unpleasant treatment of the wives and children of the Contrariants, he gave Margaret and her late husband's sister Alice, whose husband Warin Lisle was also executed, a generous allowance of 200 pounds a year on 6 April 1322, two weeks after their husbands' executions, and they weren't imprisoned. [17]

Thomas de Monthermer and Margaret Tyes had one child, Margaret de Monthermer, born on 14 October 1329 and one of only two grandchildren of Ralph de Monthermer and Joan of Acre (the other being Isabella MacDuff, countess of Fife), and the heir of her father and grandfather. She married John Montacute or Montague, second son of Edward III's close friend William, earl of Salisbury (died 1344) and Katherine Grandisson. Margaret de Monthermer and John Montacute had one son, also John, born around 1350, who succeeded his uncle William as earl of Salisbury in 1397 and was beheaded in January 1400 following the failure of the Epiphany plot to restore the deposed Richard II to the throne. Through the Montacute line, Thomas de Monthermer was the great-great-great-grandfather of Richard Nevill, earl of Warwick (1428-1471, the Kingmaker), and was also the ancestor of Queens Anne Boleyn and Katherine Parr.




  • 17. Close Rolls 1318-1323, p. 666.
view all 16

Margaret de Montacute's Timeline

October 29, 1329
Stokenham, Devonshire, England
Age 23
Of, Salisbury, Wiltshire, England
Age 27
Salisbury, Wiltshire, England
Age 28
Warblington, Havant, Hampshire, England
Age 29
Of, Salisbury, Wiltshire, England
Age 31
Of, Salisbury, Wiltshire, England
Age 35
Of, Salisbury, Wiltshire, England
Age 38
March 24, 1393
Age 63
Salisbury, Wiltshire, England