When entering the cathedral the oldest of the three windows is on display. In the year 1220bc the west rose measuring 10 meters in diameter was installed (Gardner page 468). As old as it is the west rose sill has most of its original glass. Though in 1401 the interior view of the window depicting human life was blocked by the instillation of the great organ.
In due time the north window was installed, reacing its completion in 1250 with a final diameter of 12.9 meters. It depicts the Old Testament as well as the virgin and chilled in the central medallion (Hiatt page Frankl page145). The north rose's sister the south rose window is truly spectacular. It was originally installed in 1260 two years after the work on the south façade began (Hiatt page 48). The window consists of eighty-four panes of glass, each framed in lead. The eighty-four panels are divided into four circles surrounding a central medallion. The massive window has the same dimensions as its sister, 12.9 meters, though when you include the bay that surrounds it the height is a staggering 19 meters. This piece of art made from delicate glass painted with enamel and framed in lead dominates the south façade of the cathedral of Notre Dame, making it a stunning sight on both the exterior and the interior. Sadly the window that so many visitors to Paris stand in awe of every year is not the same window that the king Saint Louis originally