Immediately after the ceremony, the army set out for Dublin. Roderic had collected a large force near Clondalkin, and Hosculf, the Danish governor of the city, encouraged by their presence, had again revolted against Dermod. The English army having learned that the woods and defiles between Wexford and Dublin were well guarded, had made forced marches along the mountains, and succeeded in reaching the capital long before they were expected. Their decision and military skill alarmed the inhabitants--they might also have heard reports of the massacres at Wexford; be this as it may, they determined to negotiate for peace, and commissioned their illustrious Archbishop, St. Laurence O'Toole, to make terms with Dermod. While the discussion was pending, two of the English leaders, Raymond _le Gros_ and Miles de Cogan, obtained an entrance into the city, and commenced a merciless butchery of the inhabitants. When the saint returned he heard cries of misery and groans of agony in all quarters, and it was not without difficulty that he succeeded in appeasing the fury of the soldiers, and the rage of the people, who had been so basely treated. [Illustration: Marriage of Eva and Strongbow.] The Four Masters accuse the people of Dublin of having attempted to purchase their own safety at the expense of the national interests, and say that "a miracle was wrought against them" as a judgment for their selfishness. Hosculf, the Danish governor, fled to the Orkneys, with some of the principal citizens, and Roderic withdrew his forces to Meath, to support O'Rourke, on whom he had bestowed a portion of that territory. Miles de Cogan was invested with the government of Dublin, and Dermod marched to Meath, to attack Roderic and O'Rourke, against whom he had an old grudge of the worst and bitterest kind. He had injured him by carrying off his wife, Dervorgil, and men generally hate most bitterly those whom they have injured most cruelly. Meanwhile MacCarthy of Desmond had attacked and defeated the English garrison at Waterford, but without any advantageous results. Roderic's weakness now led him to perpetrate an act of cruelty, although it could scarcely be called unjust according to the ideas of the times. It will be remembered that he had received hostages from Dermod for the treaty of Ferns. That treaty had been openly violated, and the King sent ambassadors to him to demand its fulfilment, by the withdrawal of the English troops, threatening, in case of refusal, to put the hostages to death. Dermod laughed at the threat. Under any circumstances, he was not a man who would hesitate to sacrifice his own flesh and blood to his ambition. Roderic was as good as his word; and the three royal hostages were put to death at Athlone.