Sir William de Grandison, 1st Baron Grandison

Male 1262 - 1335  (~ 72 years)

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  • Name William de Grandison 
    Title Sir 
    Suffix 1st Baron Grandison 
    Born ~1262  Cassington, Oxfordshire, England Find all individuals with events at this location  [1, 2
    Gender Male 
    Died 27 Jun 1335  Lambourn, Hungerford, Berkshire, England Find all individuals with events at this location  [2
    Buried Sussex County, England Find all individuals with events at this location  [2
    Person ID I48005  The Hennessee Family
    Last Modified 11 Sep 2019 

    Family Sibylla de Tregoz,   b. 1267, Vaud Canton, Switzerland Find all individuals with events at this location,   d. 23 Apr 1323, Grandison, Jura-Nord, Vaudois District, Vaud, Switzerland Find all individuals with events at this location  (Age 56 years) 
    Married Y  [1
     1. Catherine Grandison, Countess of Salisbury,   b. ~1304, Ashford, Hertfordshire, England Find all individuals with events at this location,   d. 23 Nov 1349, Bisham Abbey, Berkshire, England Find all individuals with events at this location  (Age ~ 45 years)
    Last Modified 30 Jun 2020 
    Family ID F17681  Group Sheet  |  Family Chart

  • Event Map
    Link to Google MapsBorn - ~1262 - Cassington, Oxfordshire, England Link to Google Earth
    Link to Google MapsDied - 27 Jun 1335 - Lambourn, Hungerford, Berkshire, England Link to Google Earth
    Link to Google MapsBuried - - Sussex County, England Link to Google Earth
     = Link to Google Earth 

  • Notes 
    • William de Grandison
      French: Guillaume de Grandison
      Also Known As: "William", "The Burgundian Knight", "1st Baron Grandison (02/06/1299)"
      Birthdate: circa 1262
      Birthplace: Cassington, Oxfordshire, England
      Death: June 27, 1335 (69-77)
      Lambourn, Hungerford, Berkshire, England
      Place of Burial: Sussex, England
      Immediate Family:
      Son of Amadeus de Grandison and Banoile Grandison
      Husband of Blanche 'Sibilla' de Tregoz, of Switzerland
      Father of Agnes de Grandison; John de Grandison; Mabilia de Paleshull (de Grandison); Catherine de Montagu, Countess of Salisbury; Otho de Grandison and 1 other
      Occupation: Knight, 1st Baron Grandson Switzerland, First Lord Grandison, Engaged in battles in Gascony and Scotland.

      Managed by: Andrew Dean Kemp
      Last Updated: May 9, 2018

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      Immediate Family

      Blanche 'Sibilla' de Tregoz, of ...

      Agnes de Grandison

      John de Grandison

      Mabilia de Paleshull (de Grandison)

      Catherine de Montagu, Countess o...

      Otho de Grandison

      Baron Piers Grandison

      Amadeus de Grandison

      Banoile Grandison
      About William de Grandison
      William de Grandison, 1st Lord Grandison, was born circa 1263 at Harpenden, Hertfordshire, England. He died 27 June 1335, and was presumably buried at Dore Abbey. He was known as The Burgundian Knight.

      Parents: Amadeus de Grandison (1229-1300) and Benoite de la Tour (1233-1278) [fn1][fn2]


      Blanche de Savoie (1267-1323)
      in or before 1285, Sibyl de Tregoz (1271-1334). She was the younger daughter and coheir of Sir John Tregoz, by his first wife, Mabel, daughter of Sir Fulk Fitzwarin.
      Children of William de Grandison and Sibyl Tregoz:

      Katherine de Grandison (1302-1349) m Earl Guillaume de Montagu (1302-1344)
      1st Lord Grandison

      William de Grandison (younger brother of Sir Otho de Grandison, secretary to King Edward I, and afterwards Lord Grandison), being originally a menial servant to Edmund, Earl of Lancaster, obtained from that prince,in consideration of his own faithful services and the services of his ancestors, a grant of the manors of Radley and Menstreworth, co.Gloucester. In the 20th Edward I [1292], he procured license to make a castle of his house at Asperton, co. Hereford, and in two years afterwards he was in the expedition made into Gascony, where he continued for some time and, while so engaged, was summoned to parliament as a baron. He was afterwards engaged in the Scottish wars.

      His lordship m. Sibilla, youngest dau. and fo-heiress of Sir John deTregoz, and upon partition of the lands of that inheritance, acquired the manors of Burnham, co. Somerset, and Eton, in Herefordshire. He had issue by this lady, viz., Peter, John, Otho, Mabella, Katherine, and Agnes. Hislordship d. before 1335 and was s. by his eldest son, Peter de Grandison,2nd baron. [Sir Bernard Burke, Dormant, Abeyant, Forfeited, and Extinct Peerages, Burke's Peerage, Ltd., London, 1883, p. 242, Grandison, Barons Grandison]

      Sir Bernard Burke, Dormant, Abeyant, Forfeited, and Extinct Peerages, Burke's Peerage, Ltd., London, 1883, p. 242, Grandison, Barons Grandison
      William was the younger brother of Otto de Grandison. from: Otto de Grandison: [Otto was] ... a Savoyard knight whose father was Peter, Lord of Grandison, near Lausanne in Switzerland. The young Otto travelled to England, probably in the company of Peter I of Savoy in 1252, certainly not later than 1265. There he entered the service of Henry III and by 1267 was placed in the household of the prince Edward. In 1268 both prince and servant were knighted and in 1271 the latter accompanied his lord on the Ninth Crusade, where he served at Acre that year. According to one source, it was Otto, not Eleanor of Castile, who sucked the poison from the wounded Edward after an attempted assassination.
      from: From William the Conqueror to Lord of the Isles Otto de Grandison. Note: there is a dispute among Medieval genealogists over whether Otto and William de Grandison were the sons of Amadeus de Grandison or his brothers. Chronologically it seems very unlikely that the latter was true, but as always, dates of birth and death in the 13th century can be very inaccurate.
      HISTORICAL HOME, SWITZERLAND: The Grandson family is first mentioned in the second half of the 11th Century as Grancione. The town was first mentioned around 1100 as de castro Grancione. Around 1126 it was mentioned as castri Grandissoni and in 1154 it was called apud Grantionem.[3] (wikipedia)

      Birth: 1262 Vaud, Switzerland Death: Jun. 27, 1335 Herefordshire, England

      William was the son and heir of Pierre de Granson, Seigneur de Granson on the Lake of Neufch„atel, by Agnes, daughter of Ulric, comt‚e de Neufch„atel, and grandson of Ebal IV, Seigneur de Granson. He was the younger brother of Otes de Grandison. William was in the service of Edmund, Earl of Lancaster, who, on his behalf sent a letter to the King (when William's lands were seized, he being an alien), pointing out the undesireability of such seizures. On November 4, 1288, he had letters of protection when remaining in Wales in order to fortify the castle of Carnarvon. He was excepted from military service in Gascony in 1204, in which year he appears as governor of Jersey and Guernsey for his brother Otes. He was summoned to Parliament from February 6, 1298/99 to Oct 1325, where he is held to have become Lord Grandison. He was again in Gascony with the Earl of Lancaster before January 1, 1295/96, when his lands were restored to him. He was present at the siege of Carlaverock in Jul 1300, and was summoned to the coronation of Edward II on January 18, 1307/08. On November 26, 1300, it was ordered that the lands of Sir John Tregoz should be divided between William and his wife and the other coheirs. In 1318, the Prior of the Hospital of St. John of Jerusalem made complaint that William and his sons, Piers and Otes, with others, had broken into his houses and robbed and assaulted, to which William responded that there had been theft of his goods there. When he did not attend a muster for military service in 1322, his lands were seized, but as his reason for inattendance had been severe illness, he was excused and given license to remain at home, provided that he send at least 6 men-at-arms for the expedition. In June of 1327, he had letters of protection for going to Ireland, and on September 20, 1329 had respite of homage until the following Easter, as the King had learned that he was so infirm and aged that he was unable to come. However, he was summoned in July 1332, to be with the King at Michaelmas and take passage for the expedition to Ireland. He survived his wife, Sibyl, younger daughter and coheir of Sir John Tregoz, she dying Oct 1334, he following her in June 1335. Their children were Catherine, Piers and Agnes

      Family links:

      Spouse: Sibyl de Tregoz de Grandison (1265 - 1334) Children: Otto de Grandison (____ - 1358)* Peter de Grandison (1286 - 1358)* John de Grandison (1292 - 1369)* Agnes de Grandison Bardolf (1297 - 1357)* Catherine de Grandison Montagu (1304 - 1349)*
      Note: A special Thank you to Susan Lockwood for the sponsorship of this memorial

      Burial: Dore Abbey Churchyard Abbey Dore Herefordshire Unitary Authority Herefordshire, England

      Created by: Kat Record added: Mar 27, 2012

      view all 18
      William de Grandison's Timeline
      Birth of William
      Oxfordshire, England
      Age 27
      Birth of Agnes de Grandison
      Bedfordshire, England
      Age 30
      Birth of John de Grandison
      London, Greater London, United Kingdom
      Age 31
      Birth of Otho de Grandison
      Salisbury, Wiltshire, , England
      Age 32
      Birth of Mabilia de Paleshull (de Grandison)
      Ashperton, Herefordshire, England
      Age 34
      Birth of Baron Piers Grandison
      Ashperton, Herefordshire, England
      Age 42
      Birth of Catherine de Montagu, Countess of Salisbury
      Ashford, Hertfordshire, England
      June 27, 1335
      Age 73
      Death of William at Lambourn
      Hungerford, Berkshire, England
      September 22, 1934
      Age 73
      baptised (LDS) on 9/22/1934

      end of this biography [2]

  • Sources 
    1. [S8163] "Catherine Montagu, Countess of Salisbury (~1304-1349)", biography, abstracted October 18, 2015, https://en.wikipedia.or.

    2. [S14564] "William de Grandison", Profile, Biography, Ancestors & Descendants,