"Edmund Crouchback, 1st Earl of Leicester and Lancaster (16 January 1245 – 5 June 1296), was the second surviving son of King Henry III of England and Eleanor of Provence. In his childhood he had a claim on the Kingdom of Sicily. His nickname "Crouchback" (meaning "Crossback") refers to his participation in the Ninth Crusade indicating that he was entitled to wear a cross stitched into the back of his garments."

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Links:

http://en.wikipedia.org/wiki/Edmund_Crouchback,_1st_Earl_of_Lancaster

http://www.findagrave.com/cgi-bin/fg.cgi?page=gr&GRid=19130

http://histfam.familysearch.org/getperson.php?personID=I219736&tree=Welsh

http://www.mathematical.com/lancasteredmund1243.html

http://thepeerage.com/p10193.htm

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Citations:

[S106] Royal Genealogies Website (ROYAL92.GED), online ftp://ftp.cac.psu.edu/genealogy/public_html/royal/index.html. Hereinafter cited as Royal Genealogies Website.

[S11] Alison Weir, Britain's Royal Families: The Complete Genealogy (London, U.K.: The Bodley Head, 1999), page 87. Hereinafter cited as Britain's Royal Families.

[S37] Charles Mosley, editor, Burke's Peerage, Baronetage & Knightage, 107th edition, 3 volumes (Wilmington, Delaware, U.S.A.: Burke's Peerage (Genealogical Books) Ltd, 2003), volume 3, page 4023. Hereinafter cited as Burke's Peerage and Baronetage, 107th edition.

[S2166] Plantagenet Ancestry: A Study in Colonial and Medieval Families (2004), Richardson, Douglas, edited by Kamball G. Everingham, (Baltimore: Genealogical Publishing Company, 2004), FHL book 942 D5rd., p. xxviii.