[2] In the early modern era, the kings of France drained their treasury, sold rubies and melted down gold to supply their vast military spending needs, making all the chapel's ecclesiastical treasures into a monetary reserve that could be used if needed, as they had also been in the medieval era.
This meant that under Henry IV of France (reigned 1589–1610) what was left of the treasure was reduced to the state it would retain until the French Revolution.
The Revolution meant a ban on conserving relics and all other sacred symbols linked to the kings, though this allowed for pieces judged to be of high artistic quality to be saved.
The first Friday of every month at 3 PM, guarded by the Knights, the Holy Relics are exposed for veneration by the faithful before the cathedral's high altar.
After the April 2019 fire at Notre-Dame, the relics were moved for safekeeping first to the Paris city hall overnight,[4] and then to the Louvre.