▁there after ▁turned ▁their ▁attention ▁to ▁Ireland . ▁In ▁ 9 7 4 , ▁Mac cus ▁defeated ▁and ▁captured ▁Í mar , ▁King ▁of ▁L imer ick . ▁G of raid ▁res umed ▁the ▁family ' s ▁campaign ing ▁against ▁the ▁Wel sh ▁before ▁the ▁end ▁of ▁the ▁de cade . ▁In ▁ 9 8 4 , ▁the ▁Me ic ▁Ara ilt ▁appear ▁to ▁have ▁formed ▁an ▁al liance ▁with ▁the ▁family ▁of ▁Brian ▁mac ▁C enn ét ig , ▁King ▁of ▁Mun ster . ▁Whether ▁Mac cus ▁was ▁alive ▁by ▁this ▁date ▁is ▁unknown . ▁He ▁does ▁not ▁appear ▁on ▁record ▁after ▁this ▁date , ▁and ▁seems ▁to ▁have ▁been ▁succeeded ▁by ▁his ▁brother . ▁G of raid ▁is ▁the ▁first ▁King ▁of ▁the ▁Is les ▁to ▁be ▁identified ▁as ▁such ▁by ▁Irish ▁sources . ▁ ▁Family ▁ ▁Mac cus ▁was ▁a ▁member ▁of ▁the ▁Me ic ▁Ara ilt ▁kind red , ▁although ▁his ▁exact ▁parent age ▁is ▁uncertain . ▁Sur v iving ▁evidence ▁suggests ▁that ▁Mac cus ' ▁father ▁was ▁probably ▁Ar alt ▁mac ▁Sit ri uc , ▁King ▁of ▁L imer ick . ▁Such ▁a ▁relationship ▁would ▁mean ▁that ▁Mac cus ▁was ▁a ▁member ▁of ▁the ▁U í ▁Í ma ir . ▁Altern ate ▁possibilities — lack ing ▁specific ▁evidence — are ▁that ▁Mac cus ▁was ▁a ▁son ▁of ▁H ag ro ld , ▁a ▁Dan ish ▁war l ord ▁active ▁in ▁Norm andy ; ▁or ▁a ▁son ▁of ▁Har ald r ▁G orm sson , ▁King ▁of ▁Den mark