This book focuses, from a legal perspective, on a series of events which make up some of the principal episodes in the legal history of religion in Ireland: the anti-Catholic penal laws of the late seventeenth and early eighteenth century; the shift towards the removal of disabilities from Catholics and dissenters; the dis-establishment of the Church of Ireland; and the place of religion, and the Catholic Church, under the Constitutions of 1922 and 1937.