Paris, France. The Grand Chatelet. Fortress built by King Louis VI (1081-1137) on the right bank of the Seine River. It was rebuilt in stone after the Norman incursions. After its use as a fortress was discarded, it became the Provost of Paris headquarter, housing prisons and torture chambers. It was demolished in 1808 by order of Napoleon. Main facade. Facsimile after an engraving by Matth?us Merian in "Topographia Galliae", by Martin Zeiler. Published Frankfurt, 1655. "Moeurs, usages et costumes au moyen-age et a lepoque de la Renaissance", by Paul Lacroix. Paris, 1878.