The Peace of Westphalia (1648) as a Secular Constitution, Benjamin Straumann, 2007.

This paper argues the Peace of Westphalia should be understood not mainly as the birth of sovereign states, but as a constitutional settlement that created a secular legal order by limiting rulers’ authority over religion and protecting proto-liberal religious freedoms.

1. Westphalia Is Misunderstood as the Birth of Absolute Sovereign States

2. The Peace of Augsburg Failed Because It Let Rulers Control Religion

3. The Thirty Years’ War Emerged From Constitutional and Religious Instability

4. Westphalia Solved Religious Conflict by Limiting Rulers’ Religious Authority

5. Westphalia Effectively Abolished the Old Principle That Rulers Controlled Their Subjects’ Religion

6. Westphalia Created a Proto-Liberal Public–Private Distinction

7. Westphalia Established a Secular Constitutional Order

8. Westphalia Excluded Religious Authority From Constitutional Legitimacy

9. Westphalia Was an Early Experiment in Managing Pluralism, Not Unlimited Sovereignty

⭐ Top 5 Star Facts

• The paper argues the Peace of Westphalia did not primarily create modern sovereign nation-states, but instead functioned mainly as a constitutional settlement managing religious conflict inside the Holy Roman Empire. ⭐
• The earlier Peace of Augsburg allowed rulers to determine the religion of their territories through the ius reformandi, effectively tying political authority directly to religious uniformity.
• Westphalia protected religious minorities by freezing legal religious conditions according to the “normal year” of 1624, preventing rulers from freely reshaping religion after future political changes.
• The treaties granted subjects “liberty of conscience” and protected certain forms of private religious practice from direct state interference.
• Westphalia explicitly declared future papal objections to the treaties legally void, signaling a major shift away from ecclesiastical authority toward secular constitutional legitimacy. ⭐

🧠 Conclusion

The paper challenges the common assumption that peace comes from total victory, ideological uniformity, or absolute sovereignty. ⭐

Instead, Westphalia suggests pluralistic societies survive when governments create constitutional systems capable of managing permanent disagreement without requiring one group to completely dominate another. ⭐