Page "Achill Island" Paragraph 11

The hereditary chieftains of Umhall were the O ' Malleys, recorded in the area in 814 AD when they successfully repelled an onslaught by the Vikings in Clew Bay.

The Anglo / Norman invasion of Connacht in 1235 AD saw the territory of Umhall taken over by the Butlers and later by the de Burgos.

The Butler Lordship of Burrishoole continued into the late 14th century when Thomas le Botiller was recorded as being in possession of Akkyll & Owyll.