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"Fasti Ecclesiae Hibernicae: The succession of the prelates Volume 1" Cotton, H. pp 222 Dublin, Hodges & Smith, 1848–1878
Fryde, E. B.; Greenway, D. E.; Porter, S.; Roy, I. (1986). Handbook of British Chronology (Third ed.). Cambridge: Cambridge University Press. pp. 345–386. ISBN0-521-56350-X.