Ímar ua Ímair

Ímar ua Ímair (Old Norse: Ívarr [ˈiːˌwɑrː], died 904); also known as Ivar II, was a Norse-Gaelic King of Dublin.

[1] In the decades preceding his reign, Dublin was wracked by internal strife and dynastic feuds, greatly weakening the kingdom.

[3] The exiled Dubliners, led by Ímar ua Ímair, retreated to territory in Scotland over which they exerted some control.

[nb 2] A victory was won by Constantine the following year at a place identified by the Chronicle of the Kings of Alba as Strath Erenn.

[7][8] The Vikings did not return to Dublin until 917, when Sihtric, another grandson of Ímar, landed forces in Ireland, and inflicted a decisive defeat on the armies of Leinster.