In the present article I shall not discuss fully the question of Patrician chronology. I shall merely offer some remarks on fifth century entries in the Irish annals which attracted my attention during a recent study of the chronology of St Patrick. After the labours of MacCarthy, Burp and O’Rahilly we are at last In a position to ask the relevant questions, even if we cannot always give a satisfactory answer. Yet as regards detail, much confusion remains to be disentangled; perhaps the following suggestions will be found helpful towards a final clarification.