Franz Dunzl is Professor of Early Church History and Patristics at the University of Wurzburg, Germany.

• Preface1. Introduction to the Problem2. The Beginnings of Christology3. First Models of the Relationship between 'Father' and 'Son'4. The Controversy between Logos Theologians and Monarchians5. The Concern of Arius of Alexandria and the Reaction of his Opponents6. The Intervention of Emperor Constantine and the Council of Nicaea7. The Development in the Period after the Council8. The Theological Split in the Empire9. Serdica - the Failed Imperial Council10. Constantine II and the Quest for a Theological Compromise11. The Assembly of the Neo-Nicenes12. The Question of the Holy Spirit13. The Council of Constantinople and the Agreement with the West14. ProspectBibliographyMapIndex

"Professor Dünzl's book gives a clear and concise account of what one might call the public history of the doctrine of the Trinity.  The various tributaries to the development of the doctrine, biblical and philosophical, are lucidly described and clear paths traced through the complex debates of the fourth century. The role of the West and the papacy, often neglected in this context, is given careful attention. It provides an unparalleled introduction to the subject." Prof Andrew Louth, University of Durham, UK.