'Dr Ullmann needs no introduction to medievalists, who have long been indebted to his magisterial studies of political and theological thought in the Middle Ages ... all medievalists once again owe deep gratitude to Dr Ullmann, who makes them re-examine many too easily accepted conclusions and points them to many new avenues of thoughts, deserving exploration.' - Journal of Ecclesiastical History 'This is a work by a fine scholar writing primarily for scholars; but anyone interested in our modern problems of law and government will find study of this book well worth the effort.' - Daily Telegraph

Part I: The Pope 1. Introduction 2. Foundations 3. The Secular Prince and Papal Law 4. Assessment of Papal Principles Part II: The King 5. Theocratic Kingship 6. Limitations of Theocratic Kingship 7. Feudal Kingship in England 8. Theocratic Kingship in France Part III: The People 9. Popular Associations 10. Towards Populism 11. The Legislative Sovereignty of the People 12. Applications and Implications of Populism