During the early rule of de Lacy, Earl Richard had established himself at Ferns, assuming, to such of the Irish as adhered to him, the demeanour of a king. After Dermid's death, he styled himself, in utter disregard of Irish law, "Prince of Leinster," in virtue of his wife. He proceeded to create feudal dignitaries, placing at their head, as Constable of Leinster, Robert de Quincy, to whom he gave his daughter, by his first wife, in marriage. At this point the male representatives of King Dermid came to open rupture with the Earl. Donald _Kavanagh_, surnamed "the Handsome," and by the Normans usually spoken of as "Prince" Donald, could scarcely be expected to submit to an arrangement, so opposed to all ancient custom, and to his own interests. He had borne a leading part in the restoration of his father, but surely not to this end—the exclusion of the male succession. He had been one of King Henry's guests during the Christmas holidays of the year 1172, and had rendered him some sort of homage, as Prince of Leinster. Henry, ever ready to raise up rivals to Strongbow, seems to have received him into favour, until Eva, the Earl's wife, proved, both in Ireland and England, that Donald and his brother Enna, were born out of wedlock, and that there was no direct male heir of Dermid left, after the execution of Conor, the hostage put to death by King Roderick. To English notions this might have been conclusive against Donald's title, but to the Irish, among whom the electoral principle was the source of all chieftainry, it was not so. A large proportion of the patriotic Leinstermen—what might be called the native party—adhered to Donald _Kavanagh_, utterly rejecting the title derived through the lady Eva.