Roger (Montbegon) de Montbegon

Roger (Montbegon) de Montbegon (abt. 1165 - 1226)

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Sir Roger "Baron of Hornby" de Montbegon formerly Montbegon
Born about in Hornby, Lancashire, Englandmap
Ancestors ancestors
Husband of — married 1200 [location unknown]
[children unknown]
Died in Englandmap
Profile last modified 9 Apr 2019 | Created 13 Apr 2014
This page has been accessed 1,726 times.
Magna Carta Surety Baron
Roger de Montbegon was one of the twenty-five medieval barons who were surety for Magna Carta in 1215.
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Roger (Montbegon) de Montbegon was a member of aristocracy in the British Isles.

"Roger de Montbegon (ca. 1165–1226) was another of the group of hard-line opponents of King John referred to by contemporaries as ‘the Northerners’. Roger was the son of Adam de Montbegon and his wife Maud, daughter of Adam FitzSwain. His family held the barony of Hornby in Lancashire and other estates in Nottinghamshire, Lincolnshire and the West Riding of Yorkshire."

"In Richard I’s reign Roger had been a close supporter of John, then count of Mortain, joining him in his rebellion against the king during the latter’s imprisonment in Germany, and suffering temporary forfeiture of his estates as a result. In 1199 he offered 500 marks (about £333) to John, by now king, for the marriage of Olivia, widow of Robert FitzJohn, whom he shortly took as his wife. In the new reign Roger found himself in receipt of fewer favours than he had expected, and as early as 1205, when trouble was brewing in the north following John’s loss of Normandy, he was suspected of disaffection. Not surprisingly, he had many ties of association with other northern malcontents, notably Eustace de Vesci and William de Mowbray, to both of whom he stood surety for the repayment of debts to the king. In 1214 he was one of four members of the future Twenty Five who from the start resisted payment to the king of tax in lieu of military service in Poitou – the others being de Vesci, Mowbray and Richard de Percy. In the wake of John’s rejection of Magna Carta and the outbreak of civil war he was active on the baronial side but managed to avoid involvement in the baronial defeat at Lincoln. With de Percy, he made his peace with the new regime in August 1217."

"Roger spent much of the next three years engaged in a bitter struggle for the recovery of his Nottinghamshire manors of Clayworth, Oswaldbeck and North Wheatley. Throughout the process he faced stubborn opposition and delaying tactics from the sheriff of Nottingham, Philip Mark, a former ally of John and a possible real-life model for the sheriff of Nottingham of the Robin Hood ballads. Roger himself, however, proved overbearing, and determined to get his own way. In 1220 he was accused of holding onto stock which he had seized ‘contrary to the king’s peace and the statutes of the realm’. A decision on his right to present a deputy to represent him in a duel was postponed since he was, in the court’s words, ‘a great man and a baron of the lord king’. When the Nottinghamshire court insisted on holding onto some of his own stock which had been distrained, he withdrew from the court exclaiming that, if it would not restore that stock, he would see to it himself. The constable of Nottingham then asked him three times ‘by the counsel of the court’ that he should return to hear the consideration of the court. This he refused to do. It was said in the court that if he had not been a great man and a baron of the king ‘his person might well have been detained for so many transgressions’. Roger, for all his involvement in the campaign to subject royal authority to the law, was not so keen on application of the same idea in his own case."

Above text courtesy of Professor Nigel Saul and the Magna Carta 800th Anniversary Committee.


Birth: 1168, Hornby, Lancashire, England.[1]


Death: 1226.[2]


Roger de Montbegon was the second husband of Olive Fitzjordan, daughter of Alan FitzJordan and his wife, Joan "Johanna" Unknown. They were married around 1200 in Lancashire, England. Roger de Montbegon had no issue by his wife Olivia, widow of Robert St. John. When he died in 1225/26 his castle of Hornby in Lancashire was given by the King to John de Warren, Earl of Surrey; but when his brother, Henry de Montbegon, was recognized as Roger's heir, he recovered it. Roger de Montbegon is one of the eight Magna Carta surety barons with no traced ongoing line of descendants.[3]


  1. Source: #S1 Database online. Record for Adam DeMontbegon
  2. Source: #S1 Database online. Record for Adam DeMontbegon
  3. Magna Charta Baron Page for Roger de Montbegon on
  • Magna Carta Barons, database online, entry for Roger de Montbegon, extracted from Professor Nigel Saul, Magna Carta Barons Association, Creative Commons Attribution-Noncommercial-No Derivative Works 2.0; Work of the official 800th Anniversary of Magna Carta Committee.
  • Source: S1 Author: Title: Public Member Trees Publication: Name: Operations, Inc.; Location: Provo, UT, USA; Date: 2006;
  • Cawley, Charles. "Medieval Lands": A prosopography of medieval European noble and royal families © by Charles Cawley, hosted by Foundation for Medieval Genealogy (FMG). See also WikiTree's source page for MedLands.
    • Cawley, C. (2006). Medieval Lands v.4. Web.[1]
    • "Corrections to K S B Keats-Rohan's, "Domesday Descendants" p. 601-900." Medieval Lands. Web.[2]


  • This page has been edited according to Style Standards adopted by January 2014. Descriptions of imported gedcoms for this profile are under the Changes tab.

Magna Carta Project

As a surety baron, Sir Roger de Montbegon is managed by the Magna Carta Project, even though he is one of the eight barons with no traced ongoing line of descendants. ~ Noland-165 00:37, 27 January 2018 (EST)
  • Needs Source Check: S1 is not an appropriate source for a pre-1500 profile. ~ Noland-165 16:57, 4 April 2019 (UTC)
  • Needs Re-review: It appears the S1 source was brought in by a merge, so the profile should be checked for other changes. ~ Noland-165 16:57, 4 April 2019 (UTC)

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On 30 May 2018 at 22:04 GMT RJ Horace wrote:

Montbegon-9 and Montbegon-6 appear to represent the same person because: Farrer

On 30 May 2018 at 19:20 GMT Bree Ogle wrote:

On 1 Mar 2017 at 19:47 GMT April (Dellinger) Dauenhauer wrote:

I agree with Chet Snow's reply to the same Comment as below from Chase Ashely on Robert De_Vere, which ends with:
"Respected genealogist Richardson does not so why should we?"

On 28 Feb 2017 at 23:55 GMT Chase Ashley wrote:

Unless an original record can be produced that shows he was called "Sir", it should be deleted as a prefix since "Sir" supposedly wasn't used as an honorific in England until 1297 and, in any event, was for lesser mortal like knights and baronets.

Roger is 28 degrees from Tanya Lowry, 23 degrees from Charles Tiffany and 14 degrees from Henry VIII of England on our single family tree. Login to find your connection.