Conciergerie
From Tardis Wiki, the free Doctor Who reference
The Conciergerie was a prison used by revolutionaries in 18th century France. At the time of the First Doctor's visit, it was run by Lemaitre.
Barbara Wright, Ian Chesterton and Susan were imprisoned in the Conciergerie. The Doctor came to the prison disguised as a regional deputy. (TV: The Reign of Terror)
