Sources |
- [S336463] Medieval Lands: A prosopography of medieval European noble and royal families, Charles Cawley, (Online: The Foundation for Medieval Genealogy at http://fmg.ac/Projects/MedLands/, 20XX), fmg.ac/Projects/MedLands/ENGLAND,%20Kings%201066-1603.htm#Margaretdied1275.
- [S157] A Great and Terrible King: Edward I and the Forging of Britain, Marc Morris, (New York: Pegasus Books, 2015), 6.
- [S336429] Britain's Royal Families: A Complete Genealogy, Alison Weir, (London: Vintage Books, 2008), 306.
An alternative date of 5 Oct 1240 is also given.
- [S336429] Britain's Royal Families: A Complete Genealogy, Alison Weir, (London: Vintage Books, 2008), 306.
- [S157] A Great and Terrible King: Edward I and the Forging of Britain, Marc Morris, (New York: Pegasus Books, 2015), 128.
Year only.
- [S336429] Britain's Royal Families: A Complete Genealogy, Alison Weir, (London: Vintage Books, 2008).
- [S23] The Plantagenets: The Warrior Kings and Queens Who Made England, Dan Jones, (New York: Viking, 2012), 202.
- [S157] A Great and Terrible King: Edward I and the Forging of Britain, Marc Morris, (New York: Pegasus Books, 2015), 2, 5.
- [S154] The Demon's Brood: A History of the Plantagenet Dynasty, Desmond Seward, (New York: Pegasus Books, 2014), 72.
- [S34] The History of the Noble House of Stourton, Charles Boltoph Joseph, (Chicago: The Institute of American Genealogy, 1899), vol. 1, 77.
- [S157] A Great and Terrible King: Edward I and the Forging of Britain, Marc Morris, (New York: Pegasus Books, 2015), 25-26, 244-245.
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