[382] Green, _Conquest of England_, pp. 440, 443, 444. [383] See Freeman, _Norm. Conq._, vol. ii. pp. 154. To these commercial and political relations was added soon afterwards an ecclesiastical tie. The conversion of the Ostmen to Christianity, completed in the early years of the eleventh century, was probably due to intercourse with their Christianized brethren in England rather than to the influence of the Irish clergy, whose very speech was strange to them; and their adoption of their neighbours’ creed, instead of drawing together the hostile races, soon introduced a fresh element into their strife. About the year 1040 the Ostmen of Dublin set up a bishopric of their own. Their first bishop, Donatus, was probably Irish by consecration if not by birth.[384] But when he died, in 1074,[385] the Ostmen turned instinctively towards the neighbouring island with which they had long been on peaceful terms, where the fruits of the warfare waged by generation after generation of wikings upon the shores of Britain were being reaped at last by Norman hands, where William of Normandy was entering upon the inheritance alike of Ælfred and of Cnut, and where Lanfranc was infusing a new spirit of discipline and activity into the Church of Odo and Dunstan. The last wiking-fleet that ever sailed from Dublin to attack the English coast--a fleet which Dermot Mac-Maelnambo, true to his alliance with their father, had furnished to the sons of Harold--had been beaten back six years before.[386] Since then Dermot himself was dead;[387] the Ostmen were once more free, subject to no ruler save one of their own choice and their own blood; with the consent of their king, Godred,[388] they chose a priest named Patrick to fill Donatus’s place, and sent him to be consecrated in England by the archbishop of Canterbury.[389] No scruples about infringing the rights of the Irish bishops were likely to make Lanfranc withhold his hand. At the very moment when the Ostmen’s request reached him, he had just been putting forth against the archbishop of York a claim to metropolitical jurisdiction over the whole of the British isles, founded on the words of S. Gregory committing “all the bishops of the Britains” to S. Augustine’s charge.[390] He therefore gladly welcomed an opportunity of securing for the authority of his see a footing in the neighbour-isle. He consecrated Patrick of Dublin and received his profession of obedience;[391] and for the next seventy-eight years the bishops of Dublin were suffragans not of Armagh but of Canterbury. When in 1096 the Ostmen of Waterford also chose for themselves a bishop, they too sought him beyond the sea; an Irishman, or more probably an Ostman by birth, a monk of Winchester by profession, Malchus by name, he was consecrated by S. Anselm and professed obedience to him as metropolitan.[392]