Dúnlaing mac Muiredaig

Dúnlaing mac Muiredaig

Male Abt 800 - 869  (69 years)


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  • Name Dúnlaing mac Muiredaig 
    Birth Abt 800  Leagaun, Galway, Ireland Find all individuals with events at this location 
    Gender Male 
    Death 869  County Dublin, Ireland Find all individuals with events at this location 
    Person ID I9726  footsteps | Ancestors
    Last Modified 21 Apr 2025 

    Father Muiredach O'Brian, King of Leinster ,   b. Abt 770, Leagaun, Galway, Ireland Find all individuals with events at this locationd. 818, County Dublin, Ireland Find all individuals with events at this location (Age 48 years) 
    Relationship natural 
    Mother Etromma ferch Finddelbach,   b. Abt 785   d. Yes, date unknown 
    Relationship natural 
    Family ID F5265  Group Sheet  |  Family Chart

    Family   
    Children 
    +1. Ailill mac Dúnlainge,   b. Abt 830, Leagaun, Galway, Ireland Find all individuals with events at this locationd. 871, County Dublin, Ireland Find all individuals with events at this location (Age 41 years)  [Father: natural]
    Family ID F5266  Group Sheet  |  Family Chart
    Last Modified 21 Apr 2025 

  • Event Map
    Link to Google MapsDeath - 869 - County Dublin, Ireland Link to Google Earth
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  • Notes 


    • Dúnlaing mac Muiredaig (died 869) was a King of Leinster of the Uí Muir e d a i g s ept of the Uí Dúnlainge branch of the Laigin. This sept had thei r r o y a l s eat at Maistiu (Mullaghmast) in South Kildare. He was the son o f M u i r e dach mac Brain (died 818), a previous king. He ruled from 863 t o 8 6 9 .

      There is much confusion in the king lists during this period for Leinst e r . B e t ween 838 and 871 the title King of Leinster is not recorded in t h e A n n a ls of Ulster. The death of Dúnlaing is not recorded in this anna l b u t i s r e corded in other annals.[2] Francis John Byrne suggests that t h e r o o t o f this apparent confusion lay in the fact that the Uí Dúnlaing e k i n g s e xercised little real authority due to the aggressions of their w e s t e r n neighbour Cerball mac Dúnlainge (died 888), King of Osraige. Cer b a l l , w hile unable to install himself as king of Leinster, was able to p r e v e n t any rival king exercising real power there.

      In 868 the annals record that the Laigin participated with the Uí Néill o f B r e g a a nd Norse at the Battle of Cell Ua nDaigri on the Boyne estuary . T h e y w e re defeated by the high king Áed Findliath (died 879)