Not far from the portal of the cloister is the small red gate which owes its name to the hue of its leaves. Opening under the window of the third span of the choir on the north side, it was erected under the direction of the architect Pierre de Montreuil in the second half of the 13Th century. It connected the cloister, where the canons lived, and the choir of the Cathedral to facilitate their access.
This door was restored in the first half of 2012 by the services of historic monuments – DRAC île-de-France.
The video below shows you the following: