 Echmarcach 's hold on Dublin was short @-@ lived as the Annals of Tigernach records that Ímar replaced him as King of Dublin in 1038 . This annal @-@ entry has been interpreted to indicate that Ímar drove Echmarcach from the kingship . There is reason to suspect that Þórfinnr Sigurðarson , Earl of Orkney ( died c . 1065 ) extended his presence into the Isles and the Irish Sea region at about this period . The evidence of Þórfinnr 's power in the Isles could suggest that he possessed an active interest in the ongoing struggle over the Dublin kingship . In fact , Þórfinnr 's predatory operations in the Irish Sea region may have contributed to Echmarcach 's loss of Dublin in 1038 . 
 Echmarcach <a href='null_genetive' title='1'><mark>'s</mark></a>hold on Dublin was short @-@ lived as the Annals of Tigernach <a href='uninflect' title='2'><mark>records</mark></a> <a href='null_relcl' title='3'><mark>that</mark></a>Ímar replaced him as King of Dublin in 1038 . This annal @-@ entry <a href='been_done' title='4'><mark>has</mark></a> been interpreted to indicate that Ímar drove Echmarcach from the kingship . <a href='dey_it' title='5'><mark>There</mark></a> is reason to suspect that Þórfinnr Sigurðarson , Earl of Orkney ( died c . 1065 ) extended his presence into the Isles and the Irish Sea region at about this period . The evidence of Þórfinnr <a href='null_genetive' title='6'><mark>'s</mark></a>power in the Isles could suggest that he possessed an active interest in the ongoing struggle over the Dublin kingship . In fact , Þórfinnr <a href='null_genetive' title='7'><mark>'s</mark></a>predatory operations in the Irish Sea region may <a href='been_done' title='8'><mark>have</mark></a> contributed to Echmarcach <a href='null_genetive' title='9'><mark>'s</mark></a>loss of Dublin in 1038 . 
Echmarcach  hold on Dublin was short @-@ lived as da Annals of Tigernach record Ímar replaced em as King of Dublin in 1038 . This annal @-@ entry done been interpreted to indicate that Ímar drove Echmarcach from the kingship . It is reason to suspect that Þórfinnr Sigurðarson , Earl of Orkney ( died c . 1065 ) extended his presence into tdaIsles and thdarish Sea region at bou dis period . The evidence of Þórfinnr  power in thedales could suggest that he possessed an active interest in the ongoing struggle over the Dublin kingship . In fact , Þórfinnr  predatory operations in the dash Sea region may done contributed to Echmarcach  loss of Dublin in 1038 .