In the early years of the reign the chief trouble lay in Ulster, then the most purely Celtic part of Ireland, and practically untouched by English conquest. Twice, in her weariness of the struggle with Shan O’Neill, Elizabeth conceded to him something like a sub-kingship of Ulster in return for his nominal submission. In the end he was beaten, and his head was fixed on the walls of Dublin Castle (1566). But nothing further was done to anglicise Ulster. During the attempt of the Devonshire adventurers to colonise South Munster (1569-71), and the consequent rebellion, the northern province remained an unconcerned spectator. Nor did it join in the great Desmond rising (1579-83), which, with the insurrection of the Catholic lords of the Pale and the landing of the Pope’s Italians at Smerwick, was the Irish branch of the threefold attack on Elizabeth directed by Gregory XIII. The attempt of the elder Essex to colonise Antrim (1573-75) was a disastrous failure, and Ulster still remained practically independent of the Dublin Government. The most successful Deputy of the reign was Perrot (1584-87), a valiant soldier and strict ruler, who, after long experience in the Irish wars, had come to the conclusion that what Ireland most wanted was justice. The native chiefs, released from the constant dread of spoliation, and finding that English encroachment was repressed as inflexibly as Irish disorder, became quiet and friendly. But this system did not suit the dominant race. The Deputy was accused to the Queen of seeking to betray the country to the Irish and the Spaniard. Recalled, and put upon his trial for treason, he was found guilty on suborned evidence, and sentenced to death. It is usually said that his real offence was some disrespectful language about the Queen, which he confessed. But it seems that she forbore to take his life precisely because she would not have it thought that she was influenced by personal resentment.