Leinster Laginia Laigin Limerick Luimneach Lismore Lesmore Lis Mór Lugadh Luanus {Lugaid {Molua MacCarthy Mac (meic) Carthaig Maelisa } Malchus Mael Ísa Malchus } Malachy Malachias Máel Máedóc Moriarty Ua Muirchertaig Munster Mumonia Muma Murrough Murchadh Murtough Mauricius Muirchertach Nehemiah Nehemias Gilla na Naem Niall Nigellus Niall O'Boyle Ua Baigill O'Brien Ua Briain O'Carroll Ua Cerbaill O'Conor Ua Conchobair O'Hagan Ua hAedacain O'Hanratty Ua hIndrechtaig O'Hanley Ua hAingli O'Kelly Ua Cellaig O'Loughlin Ua Lochlainn Oriel Oirgialla O'Rorke Ua Ruarc Patrick Patricius Pátraic Rory Ruaidhri Saul {Saballum } Sabal Phátraic {Saballinum} Shalvey Ua Selbaig Teague Tadhg Thomond Tuathmuma Turlough Toirdelbach Ulaid Ulydia Ulaid Usnagh Uisnech Waterford Port Láirge INTRODUCTION The main purpose of this Introduction is to give an account of a movement which changed the whole face of the Irish Church, and to the advancement of which St. Malachy devoted his life. In default of a better word we may call the movement a Reformation, though it might perhaps be more accurately described as an ecclesiastical revolution. Without some knowledge of its aims and progress it is impossible to assign to Malachy his true place in the history of his native country.