[1] The pavilion was built just north of the older Lescot Wing between 1624 and about 1645, a protracted process because of the difficulties faced by France in the late 1620s and 1630s.
On the first floor above the passageway are a corridor linking the two monumental staircases that flank the Pavilion and, facing the Cour Napoléon, a large room that was fitted in the 1650s to be the Louvre Palace Chapel.
This room, the Salle de la Chapelle, used to be of double height but was vertically partitioned in the 18th century to create space in the attic.
[5] On its entrance door is a wrought iron gate originally from the Château de Maisons, installed there in 1819 by architect Pierre Fontaine.
[6]: 203 On the second floor or attic, the main room above the former chapel has been devoted since 2016 to information about new developments at the Louvre and its two satellites in Lens, Northern France and Abu Dhabi, UAE.