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Wessex. In 871, they returned to Dublin with much 
plunder, and many captives, Angles, Britons, and Picts. 
This Olaf, king of the Norsemen in Ireland, is named no 
more in the Irish Annals, as he would have been if he had 
died in Ireland. He probably went again to England and 
died there before 873, for he was king of all the Norsemen 
in Ireland, and Ivar always appears as second to him when 
both are mentioned together; but in 873, the Annals of 
Ulster and of the Four Masters record the death of lomar, 
king of the Northmen of Ireland and Britain," so that before 
that date he had succeeded to the soyereignty; and his 
successors appear to have been, in Ireland, his son Barid, 
who died in 881, and in England Half dene, who was slain 
in 877. 
II. Olaf, son of Guthfrith. Guthfrith became king of the 
Norsemen in Ireland on the departure of Sitric for Northum- 
berland, in 920-1. On the death of Sitric, in 927, he left 
Dublin, went to Northumbria, was expelled by ^thelstan, and 
returned to Dublin after an absence of six months. His name 
occurs in the Irish Annals in 929, 930, and 931, and his death 
is recorded in 934. Olaf, his son, is mentioned as plundering 
Armagh in 933. In the next notice, which is of the year 
937, he has the title " lord of the foreigners,*' showing that 
he had succeeded his father: " Amhlaoib mac Gofradh, lord 
of the foreigners, came from At Cliat (Dublin) at Lammas, 
and carried off Amlaoib Cendcairech from Lough Rib 
(Ree), and the foreigners who were with him, after break- 
ing up their ships. The foreigners of At Cliat left their 
fortress, and went to England." 
The sequel of his enterprize is told in our Chronicle, and 
in the Annals of Clonmacnoise. He suffered disastrous defeat 
at the hands of ^thelstan on the field of Brunanburh. His 
return to Dublin the Irish Annals record in 938, and his 
departure thence in 939. As he died out of Ireland, his 
