Roger de Montbegon
Roger de Montbegon (Roger de Mumbezon, Roger de Mont Begon) (died 1226) was a landowner in northern England (especially or particularly Lancashire), Baron of Horneby, and one of the Magna Carta sureties.
There is a scholarly debate about his place in the list of sureties. J. C. Holt takes it that Matthew Paris made a mistake in replacing his name with 'Roger de Mowbray'. According to the record publicized by the National Society Magna Charta Dames and Barons, Roger abandoned the sureties and therefore Roger de Mowbray (younger brother of William de Mowbray, another surety) was substituted for him; this probably explains Matthew Paris' alleged error.
- Holt, James Clark (7 May 1992). Magna Carta (2 ed.). Cambridge University Press. p. 478. ISBN 9780521277785.
- "Roger de Montbegon". National Society Magna Charta Dames and Barons. Retrieved 28 February 2013.
- Tait, James (1894). "Mowbray, William de". In Lee, Sidney. Dictionary of National Biography 39. London: Smith, Elder & Co. p. 238.
- Cawley, Charles, Medieval Lands Project: Online Library Catalog - Roger de Montbegon, Foundation for Medieval Genealogy, retrieved August 2012
- Magna Carta Barons site: Roger de Montbegon