References for Henry 3rd Earl, Earl of Lancaster * of Leicester

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W.K. v.Isenburg: Europäische Stammtafeln, Band II, Tafel 60. Marburg, 1953 (1965)
H. Grote: Stammtafeln. Leipzig, 1877
D.Schwennicke: Europäische Stammtafeln, Vol. II, Tafel 83. Marburg, 1984
F.L.Weis: Ancestral Roots of Sixty Colonists. 6th Ed., Baltimore, 1988