Chartres Cathedral has seen only minor architectural changes since the 13th century.
In 1506, lightning destroyed the north spire, which was rebuilt in the 'Flamboyant' style from 1507 to 1513 by architect Jean Texier
 The cathedral was formally re-consecrated in October 1260, in the presence of King Louis IX of France, whose coat of arms can be seen painted on a boss at the entrance to the apse, although this was added in the 14th century

