The majority of the relics of St. Genevieve were publicly burnt
during the French Revolution, but some small surviving pieces as well as
the rock her tomb rested on are enshrined at St-Etienne-du-Mont.
The tombs of Blaise Pascal and Jean Racine are also in the church and Jean-Paul Marat is buried in the church cemetery.
The double spiral staircase with the loft above is called a jube.
It's a type of rood screen that originally separated the laity from the
high altar. This one was installed in 1530. Most rood screens were
removed during the Counter-Reformation or after Vatican II. It is the
only surviving example in Paris.