Which Enlightenment writer was imprisoned in the Bastille twice?

Which Enlightenment writer was imprisoned in the Bastille twice? Voltaire was imprisoned there twice.

The first imprisonment lasted from May 1717 to April 1718, after Voltaire wrote satirical verses that allegedly accused the regent, Philippe II, Duke of Orléans, of incest. During this detention, he began using the pen name Voltaire and worked on his tragedy Oedipe.

His second stay occurred in April 1726, following a quarrel with the nobleman Guy Auguste de Rohan-Chabot. Voltaire’s challenge to a duel backfired: Rohan’s men beat him, and Voltaire was briefly confined in the Bastille before being released on the condition that he leave France. He then spent more than two years in England.

A common mix-up is assuming that famous Bastille prisoners were all held for long political conspiracies. The fortress also confined writers and people detained by royal lettres de cachet, orders that could imprison someone without an ordinary trial.