References for Henry of Almayne

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Sir B.Burke: A Genealogical History of the Peerages and Knightages of the British Empire. London, 1953
W.K. v.Isenburg: Europäische Stammtafeln, Band II, Tafel 60. Marburg, 1953 (1965)
P. Litta: Famiglie Celebri Italiane, Vol. Supplement3, tab. 1. Milano, 19??
D.Schwennicke: Europäische Stammtafeln, Vol. II, Tafel 83. Marburg, 1984