House of O'Brien

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  • Coat of Arms
  • House of O'Brien Dál gCais Kings and Princes of Thomond Ancient arms

    House of O'Brien
    Dál gCais
    Kings and Princes of Thomond
    Ancient arms

  • House of O'Brien Arms awarded in 1543 after submission to Henry VIII of England

    House of O'Brien
    Arms awarded in 1543 after submission to Henry VIII of England

  • House of O'Brien Barons Ibrickane Earls of Thomond

    House of O'Brien
    Barons Ibrickane
    Earls of Thomond

  • Dál gCais Branches
  • House of O'Grady Lords of Cinel Dunghaile and Kilballyowen Viscounts Guillamore

    House of O'Grady
    Lords of Cinel Dunghaile and Kilballyowen
    Viscounts Guillamore

  • House of O'Kennedy Lords of Ormond High Chiefs of Ormond Upper and Ormond Lower

    House of O'Kennedy
    Lords of Ormond
    High Chiefs of Ormond Upper and Ormond Lower

  • House of MacMahon Lords of Corcabaskin Marquises of Eguilly Dukes of Magenta

    House of MacMahon
    Lords of Corcabaskin
    Marquises of Eguilly
    Dukes of Magenta

  • Cadet Branches
  • House O'Brien of Inchiquin Barons Inchiquin and Thomond Barons O'Brien of Burren Earls of Inchiquin Marquesses of Thomond Chiefs of O'Brien Issued from Murrough O'Brien, 1st Earl of Thomond and 1st Baron Inchiquin, younger son of Turlough O'Brien, King of Thomond

    House O'Brien of Inchiquin
    Barons Inchiquin and Thomond
    Barons O'Brien of Burren
    Earls of Inchiquin
    Marquesses of Thomond
    Chiefs of O'Brien
    Issued from Murrough O'Brien, 1st Earl of Thomond and 1st Baron Inchiquin, younger son of Turlough O'Brien, King of Thomond

  • House O'Brien of Leaghmenagh Lords of Leamaneh Castle and Dromoland Castle Baronets of Leaghmenagh Barons Inchiquin Issued from Donough O'Brien, younger son of Murrough O'Brien, 1st Earl of Thomond and 1st Baron Inchiquin

    House O'Brien of Leaghmenagh
    Lords of Leamaneh Castle and Dromoland Castle
    Baronets of Leaghmenagh
    Barons Inchiquin
    Issued from Donough O'Brien, younger son of Murrough O'Brien, 1st Earl of Thomond and 1st Baron Inchiquin

  • House O'Brien of Clare Barons Moyarta Viscounts Clare Titular Earls of Thomond Issued from Daniel O'Brien, younger son of Connor O'Brien, 3rd Earl of Thomond

    House O'Brien of Clare
    Barons Moyarta
    Viscounts Clare
    Titular Earls of Thomond
    Issued from Daniel O'Brien, younger son of Connor O'Brien, 3rd Earl of Thomond

  • Personal Arms
  • Turlogh O'Brien Lord of Ibrickane Son of Connor O'Brien, King of Thomond from his 2nd marriage Uncle of Donough O'Brien, 2nd Earl of Thomond

    Turlogh O'Brien
    Lord of Ibrickane
    Son of Connor O'Brien, King of Thomond from his 2nd marriage
    Uncle of Donough O'Brien, 2nd Earl of Thomond

  • Henry O'Brien Lord Ibrackan Son of Henry O'Brien, 7th Earl of Thomond from his 1st marriage Predeceased his father

    Henry O'Brien
    Lord Ibrackan
    Son of Henry O'Brien, 7th Earl of Thomond from his 1st marriage
    Predeceased his father

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