 It is conceivable that Ímar received some form of support from Knútr 's son and successor in Britain , Haraldr Knútsson , King of England ( died 1040 ) . The latter was certainly in power when Ímar replaced Echmarcach , and an association between Ímar and Haraldr could explain why the Annals of Ulster reports the latter 's death two years later . Ímar 's reign lasted about eight years , and one of his first royal acts appears to have been the invasion of Rathlin Island within the year . The fact that he proceeded to campaign in the North Channel could indicate that Echmarcach had held power in this region before his acquisition of Mann and Dublin . 
 It is conceivable that Ímar received some form of support from Knútr <a href='null_genetive' title='1'><mark>'s</mark></a>son and successor in Britain , Haraldr Knútsson , King of England (<a href='been_done' title='2'><mark></mark></a> died 1040 ) . The latter was certainly in power when Ímar replaced Echmarcach , and an association between Ímar and Haraldr could explain why the Annals of Ulster <a href='uninflect' title='3'><mark>reports</mark></a> the latter <a href='null_genetive' title='4'><mark>'s</mark></a>death two years later . Ímar <a href='null_genetive' title='5'><mark>'s</mark></a>reign<a href='been_done' title='6'><mark></mark></a> lasted about eight years , and one of his first royal acts <a href='uninflect' title='7'><mark>appears</mark></a> to have been the invasion of Rathlin Island within the year . The fact that he proceeded to campaign in the North Channel could indicate that Echmarcach <a href='been_done' title='8'><mark>had</mark></a> held power in this region before his acquisition of Mann and Dublin . 
It is conceivable that Ímar received some form of support from Knútr  son and successor in Britain , Haraldr Knútsson , King of England ( been died 1040 ) . da latter was certainly in power when Ímar replaced Echmarcach , and an association between Ímar and Haraldr could explain why tdaAnnals of Ulster report the latter  death two years later . Ímar  reign done lasted bou eight years , and one of his first royal acts appear to have been the invasion of Rathlin Island within thdaear . Thedact dat he proceeded to campaign in the North Channel could indicate tdatEchmarcach done held power in this region before his acquisition of Mann and Dublin .