Witness of the medieval civil architecture :
The building of the Consiergery was achieved by Philippe the Fair, grandson of Saint Louis, who made reorganize and enlarge the City’s palace. Yet, from this era, remains the room of guards and room of soldiers and the men of the Paris Street, which constitute one of the most beautiful examples of the medieval civil architecture. Also the three round towers remain which punctuate the Consiergery fronting: the Cesar’s tower, thus named in remembering the Roman presence; the silver tower, allusion to the royal treasure which would have been kept there; the Bonbec tower, which owes its name with the fact that it contained the room where the "question was practised" (torture), which made acknowledge the agonies.
About 1350, the King Jean the Good undertook new work; make achieved the kitchens and, a rectangular tower of watch, to the palace north-eastern angle, which was named the clock tower, because the first public clock of the country was installed there. This clock was replaced, in 1585, by the one of German Pylon, which a masterpiece was always in place with his coloured dial; surround the Law and the Justice allegories.
Burning and degradations deeply modified the aspect of the Consiergery palace. The XIX Th century, by sacrificing certain buildings, while saving some of others and by creating quays around the City’s island, in modified the approach. But when we imagine what the large-room of the first stage was: an immense room, supported by a file of pillars which separated it in two naves covered by a panelled cradles. Walls and pillars were decorated by statues representing a France kings.