CHAPTER VII. RELIGION IN IRELAND DURING THE FIFTEENTH CENTURY

  Annals of the Four Masters. State Papers, 11 vols., 1832-5. 
  Papal Letters, 9 vols. De Annatis Hiberniae, vol. i., Ulster, 
  1912; vol. ii., Leinster (app. ii. Archivium Hibernicum, vol. 
  ii.). Brady, The Episcopal Succession in England, Scotland and 
  Ireland (1400-1873)
, 3 vols., 1876. Theiner, Vetera Monumenta 
  Scotorum (1216-1547)
, 1864. Ware's Works, 2 vols., 1729. 
  Wilkins, Concilia Magnae Britanniae et Hiberniae, iii. vol., 
  1737. Reports of the Deputy Keeper of Public Records, Ireland . 
  Reports of the Royal Commission on Historical Manuscripts . De 
  Burgo, Hibernia Dominicana, 1762. Gilbert, The Viceroys of 
  Ireland
, 1865. Id., Facsimiles of National Manuscripts of 
  Ireland
, 4 vols., 1875. Lawlor, A Calendar of the Register of 
  Archbishop Sweetman
, 1911. Bellesheim, Geschichte der 
  Katholischen Kirche in Ireland
, 3 Bde, 1890. Malone, Church 
  History of Ireland from the Anglo-Norman Invasion to the 
  Reformation
, 2 vols., 3rd edition, 1880. Brenan, An 
  Ecclesiastical History of Ireland
, 1864. Gogarty, The Dawn of 
  the Reformation in Ireland (I. T. Q.)
, 1913, 1914. Green, The 
  Making of Ireland and its Undoing (1200-1600)
, 1908. Bagwell, 
  Ireland under the Tudors, 1885. Wilson, The Beginnings of 
  Modern Ireland
, 1912.

From the beginning of the fourteenth century English power in Ireland was on the decline. The Irish princes, driven to desperation by the exactions and cruelties of the officials, adopted generally a more hostile attitude, while the great Norman nobles, who had obtained grants of land in various parts of Ireland, began to intermarry with the Irish, adopted their language, their laws, their dress, and their customs, and for all practical purposes renounced their allegiance to the sovereign of England.