details of Edgar's reign are relatively unknown. It has been noted that there would have been many Irish clerics in the court of Edgar, so it is likely he was in contact with the King of Scotland. Furthermore, the possibility has been raised that Edgar sent the gift as either a reward or thanks, or in an effort to make peace. Muirchertach's fleets were documented to be active in the area at the time. It is possible Muirchertach supported rebels fighting against the King, or the other way around, supporting Edgar as he fought against rebellious subjects. Other potential reasons for this gift are that Muirchertach's fleets were plundering the Scottish coast, and Edgar wanted to make peace, or some lesser Irish Kings from Ulster were raiding the coast of Scotland and Edgar requested Muirchertach's assistance in stopping them. Either way, it is evident Muirchertach's influence reached as far as Scotland, that Edgar viewed the High King as either a valuable ally or a serious threat, and that peace with him was the best option. Later life and death By 1100, Muirchertach controlled almost all of the island, apart from the north-western territory of the Northern Uí Néill who, under the leadership of King Domnall Ua Lochlainn continued to remain defiant. However, as the conflict between Muirchertach and Domnall was reduced to a stalemate, Muirchertach became less committed to war and began focusing on other aspects of his rule. In the period of 1101–1112, he, like his father Toirdelbach Ua Briain, presided over the Synod of Cashel, and was able to influence reforms in the Church, notably relating to marriage. He also enacted more laws, and reformed aspects of the justice system. He presented more gifts to the Church. Like many rulers, not only in Ireland but throughout Europe, he seemed to realise having the Catholic Church on his side was important to a successful reign. However, conflict with Ua Lochlainn flared again in 1112 when Domnall defied Muirchertach by marching south to Dublin, where he burned Fingal and carried away many captives and herds of cattle. This led Muirchertach to return once more to the North to deal with Domnall, but a peace was again organised by the abbot of Armagh. After a month-long stand-off, matters were settled, and Muirchertach returned home to Munster. In 1114, the King became "sick to the point of a living skeleton", and his