Conversion was a highly controversial aspect of aspect of religious life in Early Modern Ireland, yet it remains under investigated by modern scholarship. This collection brings together both new and established scholars to begin the task of exploring this vexed issue. The book takes a wide chronological span, treats of the broad range of Irish confessional lives and uses a variety of disciplinary approaches, interrogating the variety of individual motivations in the face of religious and political pressures to conform during a controversial period in Irish history.