Frederick the Great Practices Enlightened Absolutism in Prussia
A king who corresponds with Voltaire and shelters Rousseau still rules as an absolute monarch
Quick facts
- Ruler
- Frederick II (Frederick the Great) of Prussia
- Reign
- 1740-1786
- Correspondent
- Voltaire
- Sheltered
- Jean-Jacques Rousseau
What happened
Frederick II of Prussia, who ruled from 1740 to 1786, styled himself the "first servant of the state" and used Enlightenment ideas to justify administrative and legal reforms while keeping full personal control of the government, a stance historians call enlightened absolutism. He reinstated the Berlin Academy of Sciences and recruited leading European scholars to it, gave Jean-Jacques Rousseau shelter for several years when Rousseau was a fugitive after The Social Contract's condemnation, and kept up a decades-long correspondence with Voltaire, who lived at Frederick's court for a period before the two men had a bitter falling out. Frederick reformed Prussian law, expanded religious toleration, and promoted agricultural improvement, all while running one of Europe's most rigid military states.
Why it matters
Frederick's career is the clearest example of the era's central contradiction: reform-minded rulers absorbed Enlightenment arguments about efficient, rational government and religious toleration without extending them into any check on the ruler's own power, a pattern also visible in Catherine the Great's Russia.
How we know
Frederick's correspondence with Voltaire and Rousseau survives and is documented in the World History Encyclopedia's biography of Frederick, which traces his patronage of the Berlin Academy and his relationships with Enlightenment writers.
Sources
- World History Encyclopedia. Frederick the Great: Forging the Prussian State · Reputable sourceworldhistory.org · The domain "worldhistory.org" is on our Reputable source registry. · Link is live and its text matches the event's key terms (Jul 2026)
- Frederick the Great Digital Correspondence Project, University of Oxford. History - Frederick the Great (1712-1786) · Reputable sourcefrederick.mml.ox.ac.uk · The domain "frederick.mml.ox.ac.uk" is on our Reputable source registry. · Link is live and its text matches the event's key terms (Jul 2026)
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