Frederick the Great IQ

Frederick never took an IQ test, and no Cox 1926 figure appears for him in the tables we checked. LifeScore uses 140+ as an editorial marker, with a range of 130 to 150, based on his battlefield record, his books and more than 100 flute sonatas.

For a time. They corresponded for decades, and Voltaire lived at Frederick's court from 1750 to 1753. The friendship broke down in quarrels, and Voltaire was briefly detained in Frankfurt on the king's orders. They later resumed writing to each other.

Mainly for turning Prussia into a leading European power. He seized Silesia from Austria in 1740, then survived the Seven Years' War against a coalition of Austria, France and Russia. He also reformed law, supported religious tolerance and made his court a meeting place for Enlightenment thinkers.

Yes. Frederick was a serious flautist who practised daily and composed more than 100 flute sonatas and four concertos. He employed C. P. E. Bach at court, and in 1747 he gave Johann Sebastian Bach the theme that became The Musical Offering.

Frederick concentrated force where the enemy was weakest and moved faster than larger armies could respond. Off the battlefield he worked to a strict daily routine of reading, writing and music.

What supports it

• He composed more than 100 flute sonatas and several concertos, some still performed.
• He wrote the Anti-Machiavel (1740), edited by Voltaire, with whom he corresponded for decades.
• At Leuthen in 1757 he defeated a much larger Austrian army with his oblique order of attack.

What it cannot prove

• Royal records flatter kings.
• Prussia's survival in the Seven Years' War owed much to luck, including Russia leaving the war in 1762.
• No psychometric record exists.

Frederick the Great's IQ is represented here by a retrospective estimate of 140+, not a verified test result. Frederick the Great is best known for exceptional discipline. The useful question is what the surviving evidence shows, not whether a precise modern score can be recovered.

Philosopher-king with a soldier's nerve. Wrote, composed and commanded.

The dominant archetype here is The Ruler. This archetype shapes decision patterns: what feels natural, what creates friction, and what blind spots tend to emerge.

Estimated IQ is 140+. This is a rough estimate based on documented accomplishments and contemporary accounts, not a literal measurement.

Napoleon visited Frederick's tomb in 1806 and reportedly told his officers that if Frederick were alive, they would not be there.

Frederick the Great's estimate of 140+ falls in the genius level IQ range. See what an IQ of 140 means, place it on the IQ chart or check how rare it is with the IQ rarity calculator.