The three immense rose windows have all survived the blaze, according to the Archbishop of Paris. The southern rose window, hand crafted in the 1250s, is 12.9m in diameter. However, some smaller windows at the top of the building melted or burst in the heat of the fire.
Update;
The crown of thorns believed to have been worn by Jesus during his crucifixion was saved from the blaze. Given to King Louis IX in 1238, it is one of the holiest relics in Christianity and was rescued from the Cathedral’s treasury by Jean-Marc Fournier, chaplain of the Paris
Fire Brigade.
Key relics saved
Notre-Dame is home to an 8,000-pipe grand organ dating back to 1403. Bertrand de Feydeau, a senior French heritage preservation official said that it had not suffered fire damage.
“The organ is a very fragile instrument, especially its pipes,” he said.
“It has not burnt, but no one can tell whether it has been damaged by water. Nobody knows if it is a functioning state or will need to be restored.”