"The cause of the Senchus Mor having been composed was this :- Patrick came to Erin to baptize and to disseminate religion among the Gaedhil, i.e. in the ninth year of Theodosius and in the fourth year of Laeghaire, King of Erin, son of Niall. But the cause of the poem having been composed was as follows -Laeghaire ordered his people to kill a man of Patrick's people; and Laeghaire agreed to give his own award to the person who should kill the man, that he might discover whether he (Patrick) would grant forgiveness for it. And Nuada Derg, the son of Niall, the brother of Laeghaire, who was in captivity in the hands of Laeghaire, heard this, and he said that if he were released and got other rewards, he would kill one of Patrick's people. And the command of Laeghaire's cavalry was given him, and he was released from captivity, and he gave guarantee that he would fulfil his promise; and he took his lance and went towards the clerics, and hurled the lance at them and slew Odran, Patrick's charioteer."