died known obscure twelfth century king dublin sons high king ireland father appears installed king dublin late early twelfth century suggests father successor designate won remarkable victory defence face invasion failed achieve successes father final expulsion dublin hands king death father disappears record death survived sons background recorded sons high king ireland died died member branch descended eponymous mac high king ireland died mother father wife daughter king annals accord epithet short armed indicate term taken literally suffered sort sons high king ireland died man secured control gaining high ireland decade later act appointed king dublin following precedent set died previous irish high eldest son died finally died sons contested succeeded securing appears regained control dublin lose king isles died united reign ireland short lived forced dublin death following year appointed nephew mac died king isles influence isles similarly short lived apparently forced region king norway seized control isles dublin falling battle later mac temporarily seized isles act appears opposed uncle reasons exit isles uncertain forcibly ejected returned ireland advantage rapidly failing health dublin power ill began temporarily seized half brother died record grant christ styled king ireland appears suggest attempted assert claim fact mac book specifically states installed dublin father problems death mac year kings mac died died took advantage decline attempted gain control dublin way major assault town fact father grandfather excluded dublin years whilst opponent married sister possessed claim dublin father grandfather mac held careers prospect enduring nearby compared distant appears compelled oppose ensuing battle recorded annals annals reveal forces victory considering weakened state triumph dublin remarkable achievement unfortunately lost life encounter according thirteenth century died added insult injury burying corpse dog contempt uncertainty originally gained dublin father installed assuming irish high following impossible mac installed king point instead possibility appointed king long victory long case evidence indicates consecutive high appoint intended successor dublin recovered regain power year dublin later lost successor mac died power continued authority king died increased sources annals masters indicate gained control dublin fact later source driven revealing regained following mac death source relates hostages northern half ireland recovered dublin statement indicative power managed preserve northern realms firmly father height father successful monarchs unable match accomplishments victory dublin marked beginning end domination finally died forced resign favour half brother died realm mac sons excluded death disappears record death old man dated annals masters entry describes time lord evidence tried seize point career annals apparently record death entry identifies grandson long king died contender irish high invaded forced submission drove mac son uncle replaced mac king likely brother slain battle men sons candidate like named cousin mac ancestry
Domnall Gerrlámhach