Four men joined the Catholic Church in the mid-1840s: a soldier, his bishop brother, a priest born a slave and an editor. For the next two decades they were in the thick of the battles of the era--Catholicism versus Know-Nothingism, slavery versus abolition, North versus South. Much has been written about the Catholic Church and about the Civil War. This book is the first in more than half a century to focus exclusively on the intersection of these two topics.

This book examines Anglo-Italian political and cultural relations and analyses the importance of religion in the British 'Orientalist' perception of Italy. It puts religion at the centre of a harsh political and cultural war, one that was fought on international, diplomatic, and domestic levels.