p. 415) views Ua Briain's activities in the Irish Sea area [as] a mixture of old and new, of pragmatism and idealism ... But they are invested with a modern purpose. Ua Briain makes one marriage with the king of Norway, and another with one of the most powerful non-royal families in Europe; he treats with the king of Scotland; his aid to the Welsh princes acts as a stabilising influence in Welsh politics; he incurs trade sanctions from the king of England, and negotiates their suspension. Altogether, Muirchertach Ó Briain lifted his head above the domestic power struggle and sought to involve Ireland in the international politics of Europe, so that some sixty years later, these activities were still well remembered, and are reflected in the vitae of St. Flannan of Killaloe. Notes References Candon, Anthony, Muirchertach Ua Briain, Politics and Naval Activity in the Irish Sea, 1075 to 119, in Keimelia:Studies in Medieval Archaeology and History in memory of Tom Delaney, pp. 397–415. ed Gearoid Mac Nicoill, Galway, 1979 Ireland in the Middle Ages, pp. 41–47, 48, 51–53. 1050s births 1119 deaths Kings of Munster High Kings of Ireland 11th-century Irish monarchs 12th-century Irish monarchs People from County Clare Year of birth unknown Monarchs of Dublin Muirchertach Muirchertach Dál gCais