Átha (Mellifont Abbey) is called Inber Bic Loingsigh, The Estuary of Becc the Exile, son of one Airist, King of the Romans. He also is explained as having been drowned by a wave when invading Ireland here. The name may be an untraditional construct echoing and modifying the better known story of Colpa, and overlaying it with a more prestigious figure from the Classical World, as the Acallam also retains reference to Tond Indbir Colpa cruaidh, the hard or harsh Wave of Inbher Colpa, in a poem section listing it as one of the famous waves of Ireland. The estuary is presented in Togail Bruidne Dá Derga as the principal maritime entry port of Ireland in the peaceful times of the legendary king Conaire Mór: 'Now there were in his reign great bounties, to wit, seven ships in every June in every year arriving at Inver Colptha, and oakmast up to the knees in every autumn, and plenty of fish in the rivers Bush and Boyne in the June of each year, and such abundance of good will that no one slew another in Erin during his reign. And to every one in Erin his fellow's voice seemed as sweet as the strings of lutes. From mid-spring to mid-autumn no wind disturbed a cow's tail. His reign was neither thunderous nor stormy'. The traditional boundary of the province of Ulster was the Boyne and its tributary the Blackwater, appearing as such in the Táin Bó Cúailnge. The Ulaid according to historian Francis John Byrne 'possibly still ruled directly in Louth as far as the Boyne in the early seventh century' a time when Congal Cáech made a bid for the kingship of Tara. Tuath Inbir and Tráig Indbir Colpa are listed as the southern boundary points of the forest and lands of Conall Cernach, mythological hero of the Ulaid. The two districts ran north to the area of Newry, were given to Conall by Cuscraid Meand Macha, King of Ulster, his foster-son, and represent later pseudo-historical claims by the Cruthin of Conaille Muirtheimne. It is unclear if these claims go south of the Boyne, including these areas rather than touching on them, but the rath of Láeg, charioteer of Cú Chulainn found at Ninch also has Ulster Cycle associations, and both the Máta and Cú Chulainn are connected with Magh Muirthemne of the Cruthin. Another tradition found in the Senchas