in 1180, he left ireland for the last time, taking with him a son of ua conchobair's as a hostage to henry. he meant to admonish henry for incursions against ua conchobair, contrary to the treaty of windsor. after a stay at the monastery of abingdon south of oxford – necessitated by a closure of the ports – he landed at le tréport, normandy, at a cove named after him, saint-laurent. he fell ill and was conveyed to the abbey of st. victor at eu. mortally ill, it was suggested that he should make his will, to which he replied: ""god knows, i have not a penny under the sun to leave anyone."" his last thoughts were of his people in dublin: ""alas, you poor, foolish people, what will you do now? who will take care of you in your trouble? who will help you?"" he died on 14 november 1180.