The words Star Chamber now suggest a secret cabal crushing its enemies, but the English court of that name began as a reform. Formalized under King Henry VII around 1487, it gave ordinary people a way to seek justice against nobles so powerful that local courts would never dare convict them. It allowed defendants counsel and witnesses, and the jurist Sir Edward Coke called it the most honorable court in the Christian world, second only to Parliament. This episode traces how that promise soured into the textbook example of judicial overreach.

The danger lay in its flexibility. As a court of equity it could punish conduct that broke no written law, and its ex officio oath forced defendants to swear to answer truthfully before they knew the charges. Under Henry VIII it became a political tool, and under Charles I it substituted for Parliament during 11 years of personal rule, raising money through ruinous fines and silencing Puritans and the press. Its abolition in 1641 left a legacy written into the English Bill of Rights and the United States Constitution.

• One theory holds that the name came from gilded stars on the chamber ceiling, which was salvaged and still survives in a castle in Cheshire.
• The court could not impose death, but it ordered whippings, the pillory, and the cutting off of ears, and it developed concepts such as conspiracy, attempt, and perjury.
• In 1632 it banned all news books after Spanish and Austrian diplomats complained about coverage of the Thirty Years’ War, and readers turned to smuggled copies from Amsterdam.
• Puritan lawyer William Prynne was pilloried and branded on the cheeks with the letters S and L in 1637, and John Lilburne was whipped through London for refusing the oath.
• The memory of forced self-accusation and brutal punishment shaped the Fifth and Eighth Amendments of the United States Constitution.