battle irish battle gap battle took place probably near decisive engagement brief revolt king combined forces kingdoms ireland inflicted crushing defeat allied armies dublin led king armies met narrow valley causing rout army directions pursued main body army slaughtered rallied points main commanders killed captured battle resulted occupation dublin brian forces submission solution prove permanent eventually resulted second revolt brian location nineteenth century scholars including especially based clergyman tempted locate battle site vicinity lifetime theory disputed subsequently located battle site dublin border irish form reality wrote given battles place border regions reasonable seek location close perimeter kingdom dublin account suggestion places battle gap crossed road section kill worthy consideration event engagement took place easy day march dublin brian pressed immediately reach town following day background royal meeting near king met long time rival mac time high king ireland idea high considered mainly invention came vogue 10th century denote king enforced power external territories assumed irish high kings truce brian granted rule southern half ireland retained northern half high honour arrangement handed brian hostages taken dublin brian handed hostages year brian began operating time late historically hostile domination king allied revolted brian according 17th century annals masters following prophecy predicted shall come water hands persons shall drink deadly draught stone victorious overthrow shall retreat till reach past wood northwards fair shall burned plain battle annals masters records brian united forces according annals met army thursday december near ancient stronghold army defeated army later historians seen battle decisive sources point high mortality sides according represents perspective best foreigners ireland fell partisan claiming time taken place greater slaughter fallen included son brother nobles foreigners son apparently belonged brother son king died acknowledges fell details provided says battle bloody furious red heroic rough cruel greater slaughter seventh century refers crushing defeat dublin dictionary english history says battle effectively desperate revolt dublin tradition records son king killed retreat interned obscure cemetery brian took prisoner held received hostages alleged norse fell battle time warfare fought limited scale raiding armies generally men importantly defeat left road dublin free victorious brian sack dublin victory followed attack city dublin forces marched quickly dublin confirming location battle reaching town new year eve entered defences great resistance annals new year day january burned settlement nearby wood known apparently stood north town second time years described considerable detail 12th century gives accounts occupation brian remained dublin christmas day january christmas day february later annals gives date december annals dates brian capture city days later january according reliable annals masters dublin occupied week forces case brian plundered city burned norse fortress expelled ruler king wrote poetic license event picture obtained wealth trading centre dublin according account brian having plundered fortress entered market area seized greatest wealth approach forces king fled northward hoping obtain asylum ally captured circumstances according aftermath bestowed candidate son retained status deposed returned having found asylum north accounts yielded hostages brian annals add brian suitable gesture gave fort foreigners wrote implications time onwards scandinavian ruler hold overlord brian stage dominance dublin secured rival mac years earlier little doubt longer term brian renewed confidence moved mac initiatives resulted setbacks expedition resulted advance cavalry slaughtered foray reversed river fleet allies having constructed barrier shannon brian found way hit early brought large army took hostages according flight city brought north find refuge ireland eventually returned submitted brian gave hostages restored dublin months brian ended occupation february meantime temporarily turned pirate responsible raid wales brian gave daughter wife marriage brian turn took second wife mother married cessation revolt followed decade peace dublin men served armies brian forgot insult revenge soldiers served brian campaign ravaged lands found support northern kings slipping away felt obliged submit new political order created capitulation king left brian powerful king ireland non king achieve prominence wrote gave brian psychological advantage king increased readiness break agreement result battle achieved domination meaningful sense dublin achieving effective dominance dublin brian acquired military aside psychological advantage helped reach success regard probably instrumental tying dublin sphere century follow
Battle of Glenmama