Brian Ború's Fort is located in a very serene and spectacular setting, overlooking Lough Derg on the River Shannon, just one mile north of the picturesque village of Killaloe. Béal Ború, as it is more commonly known, stands on a spur of land which commands the point where the lake narrows into the River Shannon.

Brian Ború (Bórumha/Bóraimhe/Bóramha, meaning: a cattle tribute) was either born or reared at this mystical location, according to folklorist Dáithí Ó hÓgáin, and the name, Béal Bóramha, means the 'port of the cattle tribute'. Ború was High King of Ireland from 1002 until his death in 1014AD.

His headquarters was the nearby Ceann Cora (in English: Kincora), which is located one mile from the spot in the picturesque village of Killaloe. Ború's death came during the Battle of Clontarf against the Norsemen, a battle which, even in death, he won nonetheless.