to seize the kingship for himself, Muirchertach "took his daughter away from Arnulf and gave the wanton girl in an unlawful marriage to one of his cousins. He resolved to kill Arnulf himself as a reward for his alliance, but the latter ... fled to his own people and lived for twenty years afterwards with no fixed abode." According to Orderic Vitalis, Muirchertach only allowed the Normans to stay in case he needed their support to fight Magnus if he were to violate their treaty and attack the Irish. However, after the Norwegian King's death at the hands of the Ulaid, Muirchertach turned against the English rebels and forced them out of Ireland, possibly in an attempt to make amends with Henry. Indeed, Henry had imposed sanctions on Irish trade for their assistance in helping the rebels, but Muirchertach was able to negotiate the lifting of the embargo (possibly by handing Arnulf over to the English), while also again demonstrating his skill in diplomacy. However, it does seem unlikely that Muirchertach would have turned against the Normans. It is possible Arnulf was not even in Ireland at the time of Magnus's death. The marriage between Muirchertach's daughter and Arnulf went ahead regardless, and later, the High King wrote to the English bishop Anselm of Canterbury, thanking him for intervening with Henry on behalf of his son-in-law. It is possible Henry would have executed Arnulf otherwise. Although Arnulf was pardoned, the de Belleme family was never really forgiven by Henry for the rebellion. Scotland and the Isles Following the death of Magnus Barefoot in 1103 and the withdrawal of Norwegian military forces from the Irish Sea area, Muirchertach successfully resumed his attempts to expand Irish power in the region at the expense of the Norse. He was able to re-install his nephew Diarmuit as King of the Isle of Man in the year 1111. With direct control of the Isle of Man, he also exercised control over the other Islands close to the Scottish mainland. At the time, Scotland was ruled by King Edgar. In 1105, Muirchertach received the gift of a camel from Edgar. This is seen by modern historians as significant as camels were very rare in the British Isles. There are several possible explanations for this gift, but this period of Scottish history is not very well-documented in comparison with other areas of the British Isles. Even the