At last they were overthrown by Brian Boru king of Ireland, in a great battle fought at Clontarf near Dublin, on Good Friday, the 23rd April, 1014, of which a full account may be read in the "Child's History of Ireland." After this, though no attempt was made to [expel] them from the country, they gave little trouble. They became Christians, intermarried with the natives, and settled down to industry and commerce like the rest of the people; and there are many of their descendants to this day in various parts of Ireland.
For about a century and a half after the battle of Clontarf, eight Irish kings reigned: but none of them succeeded in mastering the whole country. Some of these were O'Briens of Munster, the descendants of Brian Boru; some O'Loghlins of Ulster, a branch of the O'Neill family, descendants of Niall of the Nine Hostages ([see p. 5]); and some O'Conors of Connaught. During this period Ireland was greatly disturbed; for the several kings were continually fighting with each other, striving who should be head king: so that the next invaders, when they came, found the country ill prepared to resist them.
Those who have read the History of England will remember that the Normans, coming from France under William the Conqueror, took the [sovereignty] of England after the battle of Hastings in 1066. About a century later, their descendants, who were now called Anglo-Normans, i.e. English Normans, made settlements in Ireland. Their leader when they first arrived was Earl Strongbow; but in 1171 Henry II., king of England, came over with an army and took command. In 1172 he [annexed] Ireland to the crown of England, that is, he claimed it as a part of his dominions. The Over-king of Ireland at this time was Roderick O'Conor. He was unable to repel the new invaders: and after his death there was no longer a native king over all Ireland.
King Henry divided nearly the whole island among his lords, who all went, after some time, to reside in their own territories: but they were to remain under the authority of the king. These lords soon became great and powerful, and ruled like princes; and from them descend the chief [Anglo-Irish] families, of whom the most distinguished were the Geraldines or Fitzgeralds, the Butlers, and the De Burgos or Burkes.
But it must not be supposed that all this was done quietly: for the native Irish chiefs everywhere resisted these new lords. Although king Henry went through the form of "annexing" Ireland, it was annexed only in name. In reality his authority extended over only a small portion. It took more than four hundred years to annex the whole country: and during all this time there were constant wars, the Anglo-Normans [encroaching], and the Irish chiefs resisting as best they could. It was only in the reign of James I., that is, about three hundred years ago, that the whole of Ireland was brought under English law.
O'Dea's Castle, Dysart, Co. Clare. Built in the fourteenth century by one of the Irish chiefs. See the note under St. Finghin's Church, page [189].