Irish abbot at Nuremberg was chaplain to the Emperor Frederick; one of Hadrian's masters at Paris had been a monk from the Irish settlement in Ratisbon, and as Pope he still remembered the Irish monk with warm affection. When he was raised to the Papacy in the very year of Henry's coronation, one of his first cares was to complete the organization of Christendom in the West by bringing the Irish Church under Catholic discipline. Henry, on his part, was only too eager to accept his new responsibility, and less than a year after his coronation he called a council to discuss the conquest of Ireland. The scheme was abandoned on account of its difficulties, but the question was later raised again in another form. Diarmait Mac Murchadha (in modern form Jeremiah Murphy), King of Leinster, had carried off in 1152 the wife of the chief of Breifne (Cavan and Leitrim). A confederation was formed against him under Ruaidhri (or Rory), King of Connaught, and he was driven from the island in 1166. "Following a flying fortune and hoping much from the turning of the wheel," he fled to Henry in Aquitaine, did homage to the English king for his lands, and received in return letters granting permission to such of Henry's servants as were willing to aid him in their recovery. Diarmait easily found allies in the nobles of the Welsh border, in whose veins ran the blood of two warlike races. It was by just such an enterprise as this that their Norman fathers and grandfathers had won their Welsh domains. From childhood they had been brought up in the tumult of perpetual forays, and trained in a warfare where agility and dash and endurance of hunger and hardship were the first qualifications of a soldier. Richard de Clare, Earl of Striguil, in later days nicknamed Strongbow--a descendant of one of the Conqueror's greatest warriors, but now a needy adventurer sorely harassed by his creditors--was easily won by the promise of Diarmait's daughter and heiress, Aeifi, as his wife. Rhys, the Prince of South Wales, looked favourably on the expedition. His aunt, Nesta, had been the mistress of Henry I. of England; and had afterwards married first Gerald of Windsor, and then a certain Stephen; her sons and grandsons, whether Fitz-Henrys, Fitz-Geralds, or Fitz-Stephens, were famous men of war; nor were the children of her daughter, who had married William de Barri, behind them in valour. No less than eighteen knights of this extraordinary family took part in the conquest, where in feats of war they renewed the glories of their ancestors both Norse and Welsh; a son of Nesta's, David, the Bishop of St. David's, gave his sympathy and help; while her grandson, Gerald de Barri, became the famous historian of the conquest.