I find Wikipedia a great data base giving information which no other encyclopedia would give.
I do my bit when somebody tries to mutilate (not edit) an article by, for instance, deleting whole paragraphs or links just because he/she does not like it.
Chartres Cathedral, also known as the Cathedral of Our Lady of Chartres, is a Catholic cathedral in Chartres, France, about 80 kilometres (50 miles) southwest of Paris. It is the seat of the bishop of Chartres. Mostly constructed between 1194 and 1220, it stands on the site of at least five cathedrals that have occupied the site since the Diocese of Chartres was formed as an episcopal see in the 4th century. It is one of the best-known and most influential examples of High Gothic and Classic Gothic architecture. Chartres Cathedral is known for its stained glass, and contains 167 stained-glass windows dating from the 12th century to the 20th century. This photograph shows the stained glass in the north transept of Chartres Cathedral. The rose window, which is 10.5 metres (34 feet) in diameter, was installed circa 1230 and contains imagery relating to the Virgin Mary and figures from the Old Testament. The presence of the coats of arms of King Louis IX and his mother Blanche of Castile are taken as a sign of royal patronage for this window. Below the rose are five lancet windows, each 7.5 metres (25 feet) tall, depicting Saint Anne and four Old Testament figures.Photograph credit: PtrQs
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