Not till 1168, thirteen years after the agreement with Pope Adrian, did the interference of the English king in Ireland actually begin. Even then he did not take the conquest in hand himself, but merely sanctioned a private adventure of some of his subjects. Dermot MacMorrough, king of Leinster, an unquiet Irish prince who for good reasons had been expelled by his neighbours, came to Henry's court in Normandy, proffering his allegiance in return for restoration to his lost dominions. The quarrel with Becket, and the French war, were both distracting the English king at the moment. He could not spare attention for the matter, but gave Dermot leave to enlist auxiliaries among the turbulent barons of the South Welsh Marches. The Irish exile enlisted first the services of Maurice Fitzgerald and Robert Fitzstephen, two half-brothers, both noted fighting men, and afterwards those of Richard de Clare, earl of Pembroke, an ambitious and impecunious magnate of broken fortunes. The two barons were promised lands, the earl a greater bribe--the hand of Dermot's only daughter Eva and the inheritance of the kingdom of Leinster. Fitzgerald and Fitzstephen crossed to Ireland in 1169 with a mere handful of followers. But they achieved victories of an almost incredible completeness over Dermot's enemies. The undisciplined hordes of the king of Ossory and the Danes of Wexford could not stand before the Anglo-Norman tactics--the charge of the knights and the arrow-flight of the archers, skilfully combined by the adventurous invaders. Dermot was triumphant, and sent for more auxiliaries, aspiring to evict Roderic O'Connor of Connaught from the precarious throne of High King of Ireland. In 1170 the earl of Pembroke came over with a larger force, celebrated his marriage with Dermot's daughter, and commenced a series of conquests. He took Waterford and Dublin from the Danes, and scattered the hosts of the native princes. Early in the next spring Dermot died, and Earl Richard, in virtue of his marriage, claimed the kingship of Leinster. He held his own, despite the assaults of a great army gathered by Roderic the High King, and of a viking fleet which came to help the conquered jarls of Waterford and Dublin. At this moment King Henry thought it necessary to interfere; if he let more time slip away, Earl Richard would become a powerful king and forget his English allegiance. Accordingly, with a large army at his back, he landed at Waterford in 1171 and marched on Dublin. Richard did him homage for Leinster, engaging to hold it as a palatine earldom, and not to claim the name or rights of a king. The other adventurers followed his example, as did, after an interval, most of the native Irish princes. Only Roderic of Connaught held aloof in his western solitudes, asserting his independence. The clergy, almost without a murmur, submitted themselves to the Roman Church.