Forggus mac Muirchertaig (died c . 566), also called Forrgus mac Maic Ercae , is included in most lists of High Kings of Ireland .
His father was Muirchertach mac Muiredaig , also called Mac Ercae, and his brother was Domnall Ilchelgach with whom he is said to have ruled jointly. He succeeded Diarmait mac Cerbaill , and was followed by Ainmuire mac Sétnai .
His death is recorded in Adomnán 's Life of Saint Columba .
The less reliable evidence of the Irish annals records that he and Domnall defeated Eógan Bél , grandson of Ailill Molt , and then, c. 550, Éogan's son Ailill Inbanda further west, in the region of Clew Bay , modern County Mayo . He also fought Diarmait in alliance with Aimmuire.
References
Byrne, Francis John (1973), Irish Kings and High-Kings , London: Batsford, ISBN 0-7134-5882-8
Charles-Edwards, T. M. (2000), Early Christian Ireland , Cambridge: Cambridge University Press, ISBN 0-521-36395-0
——— (2004), "Forggus mac Muirchertaig (d . c . 566)", Oxford Dictionary of National Biography , Oxford: Oxford University Press, retrieved 6 March 2008
Sharpe, Richard (1995), Adomnán of Iona: Life of St Columba , Harmondsworth: Penguin, ISBN 0-14-044462-9
Kings of Ireland, circa 549–1175
Kings of Tara Kings of Ireland