Which scandalous writer was moved from the Bastille days before it was stormed?

The scandalous writer moved from the Bastille days before it was stormed was the Marquis de Sade. His full name was Donatien Alphonse François de Sade, and his provocative writings and notorious personal reputation later made his surname the source of “sadism.”

Sade had been imprisoned at the Bastille since 1784, after being transferred from Vincennes. During the rising tension of July 1789, he shouted from his cell window that prisoners were being murdered, reportedly using a makeshift speaking tube to reach people outside. Authorities treated the incident as a threat to order.

He was removed from the Bastille on July 4, 1789—ten days before the fortress was captured—and taken to the asylum at Charenton. Because the transfer was abrupt, he left behind papers and possessions, including the manuscript of The 120 Days of Sodom. The Bastille was stormed on July 14, and Sade believed the manuscript had been destroyed, although it was later recovered.

The other choices were not the famous writer transferred in this episode. Beaumarchais was a playwright and businessman, Rousseau a philosopher and novelist, and Diderot an encyclopedist; none matches this Bastille incident.