4 ▁years ▁earlier ▁in ▁ 9 0 0 ▁and ▁ 7 7 ▁years ▁earlier ▁in ▁ 8 7 7 ▁respectively . ▁ ▁In ▁ 9 4 5 , ▁Edmund ▁I ▁of ▁England , ▁having ▁exp elled ▁Am la í b ▁Cu aran ▁( O la f ▁Si ht ric sson ) ▁from ▁North umb ria , ▁dev ast ated ▁C umb ria ▁and ▁blind ed ▁two ▁sons ▁of ▁Dom n all ▁mac ▁E óg ain , ▁king ▁of ▁Str ath c ly de . ▁It ▁is ▁said ▁that ▁he ▁then ▁" let " ▁or ▁" comm ended " ▁Str ath c ly de ▁to ▁M á el ▁Col u im ▁in ▁return ▁for ▁an ▁al liance . ▁What ▁is ▁to ▁be ▁understood ▁by ▁" let " ▁or ▁" comm ended " ▁is ▁unclear , ▁but ▁it ▁may ▁well ▁mean ▁that ▁M á el ▁Col u im ▁had ▁been ▁the ▁over l ord ▁of ▁Str ath c ly de ▁and ▁that ▁Edmund ▁recogn ised ▁this ▁while ▁taking ▁lands ▁in ▁southern ▁C umb ria ▁for ▁himself . ▁ ▁The ▁Chron icle ▁of ▁the ▁Kings ▁of ▁Al ba ▁says ▁that ▁M á el ▁Col u im ▁took ▁an ▁army ▁into ▁Mor ay ▁" and ▁sle w ▁C ella ch ". ▁C ella ch ▁is ▁not ▁named ▁in ▁the ▁surv iving ▁gene alog ies ▁of ▁the ▁r ul ers ▁of ▁Mor ay , ▁and ▁his ▁identity ▁is ▁unknown . ▁ ▁M á el ▁Col u im ▁appears ▁to ▁have ▁kept ▁his ▁agreement ▁with ▁the ▁late ▁English ▁king