Fryde, Edmund Boleslav; Greenway, D.E.; Porter, S.; Roy, I. (1986). Handbook of British chronology. Guides and handbooksno. 2. Offices of the Royal Historical Society : University College. pp. 359–360, 395, and 433. ISBN9780861931064. OCLC989682481.
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Fryde, Edmund Boleslav; Greenway, D.E.; Porter, S.; Roy, I. (1986). Handbook of British chronology. Guides and handbooksno. 2. Offices of the Royal Historical Society : University College. pp. 359–360, 395, and 433. ISBN9780861931064. OCLC989682481.
Moody, T.W.; Martin, F.X.; Byrne, F.J., eds. (1984). A New History of Ireland. A Companion to Irish History, part 2. Vol. 9 Maps, genealogies, lists. Clarendon Press. pp. 328–330, 387, and 436. ISBN0-19-821745-5. OCLC1152598744.
