Sources |
- [S188] Royal Genealogies Website (ROYAL92.GED).
- [S174] Wikipedia, http://en.wikipedia.org/wiki/Robert,_Count_of_Mortain.
- [S179] The Complete Peerage of England, Scotland, Ireland, Great Britain and the United Kingdom, Extant, Extinct or Dormant, new ed, G.E. Cokayne; with Vicary Gibbs, H.A. Doubleday, Geoffrey H. White, Duncan Warrand and Lord Howard de Walden, editors, (Name: Alan Sutton Publishing; Location: Gloucester, U.K.; Date: 2000;).
- [S174] Wikipedia, http://en.wikipedia.org/wiki/Mabel_de_Belleme.
- [S180] Britain's Royal Family: A Complete Genealogy, Alison Weir, (Name: The Bodley Head; Location: London, U.K.; Date: 1999;).
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