This
tuath, or territory, was coextensive with the
Diocese of Kilfenora. At some point around the 12th Century, the territory was divided in two:
Corco Modhruadh Iartharach ("Western Corcomroe") and
Corco Modhruadh Oirthearach ("Eastern Corcomroe") also known as
Boireann. The territories were ruled by the Ó Conchubhair Corcomroe and
Ó Lochlainn clans, respectively. They became administrative baronies in the
Lordship of Ireland in the late 16th century known as Corcomroe and
Burren.
Corcomroe Abbey, which is in the barony of Burren, itself was also known as the Abbey of Burren, or
Sancta Maria de Petra Fertilis (Blessed Mary of the Fertile Rock). The barony contains the villages of
Ennistymon,
Lehinch,
Kilfenora,
Liscannor,
Doolin and
Kilshanny. It contains the civil parishes of
Clooney,
Kilfenora,
Killaspuglonane,
Kiltoraght,
Kilmanaheen,
Kilmacrichy,
Killilagh and
Kilshanny. ==Corco Modruadh in the Annals of Inisfallen==