The hostility of the Ostmen had apparently ended with Hasculf’s defeat; thenceforth they seem to have made common cause with the new-comers in whom they were perhaps already beginning to recognize the stirrings of kindred blood. But, on the other hand, the position of Earl Richard and his comrades had been seriously weakened by Dermot’s death. The king of Leinster’s devise of his kingdom to his son-in-law was, like the grants which he had made to the Geraldines and like his own homage to King Henry, void in Irish law. In Irish eyes his death removed the last shadow of excuse for the presence of the strangers on Irish soil; their allies rapidly fell away;[507] and by midsummer the whole country rose against them as one man. Roderic O’Conor mustered the forces of the north; Archbishop Laurence of Dublin, whose family occupied an influential position in Leinster, called up the tribes of the south; while a squadron of thirty ships was hired from Jarl Godred of Man.[508] The aim of the expedition was to blockade Dublin, whither Earl Richard had now returned, and where almost all the leaders of the invasion, except Robert Fitz-Stephen and Hervey of Mountmorris, were now gathered together. The whole Irish land-force amounted to sixty thousand men; half of these were under the immediate command of Roderic, encamped at Castle-Knock;[509] Mac-Dunlevy, the chieftain of Uladh, planted his banner on the old battle-field of Clontarf;[510] Donell O’Brien, the king of North Munster, posted himself at Kilmainham; and Murtogh Mac-Murrough, a brother of Dermot, whom Roderic had set up as king of Leinster in 1167, took up his position at Dalkey.[511] To these were added, for the northern division, the men of Breffny and of East Meath under Tighernan O’Ruark, those of Oiriel or southern Ulster under Murtogh O’Carroll,[512] and those of West Meath under Murtogh O’Melaghlin; while the archbishop’s call had brought up the whole strength of Leinster except the men of Wexford and Kinsellagh;[513] and even these, as the sequel proved, were preparing to fight the same battle on other ground. [507] Anglo-Norm. Poem (Michel), p. 83. [508] Gir. Cambr. as above, cc. 22, 24 (pp. 265, 266, 269). This is the archbishop afterwards canonized as S. Laurence O’Toole. [509] Cf. Anglo-Norm. Poem (Michel), p. 84, with Gerald’s reckoning of Roderic’s own forces at thirty thousand. _Expugn. Hibern._, l. i. c. 24 (Dimock, vol. v. p. 268). [510] “A Clontarf ficha sa banere.” Anglo-Norm. Poem, as above. [511] _Ibid._ [512] Four Masters, a. 1171 (O’Donovan, vol. ii. p. 1185). Gir. Cambr. _Expugn. Hibern._, l. i. c. 24 (Dimock, vol. v. p. 269). [513] Gir. Cambr. as above.