In the 1670s, Louis XIV had a magnificent five-room bath complex installed on the ground floor of the apartments belonging to his mistress, Madame de Montespan. The baths were installed with hot and cold running water, at the time an exceptional technological advancement, but their primary use was for sexual trysts between the couple rather than for hygiene. The suite was dismantled and covered over after the relationship ended in 1684. Louis XV commissioned a bathroom to be built when he was thirteen years old – he would later build bathrooms supplied with plumbed-in hot and cold water. To relieve themselves, many courtiers had their own collapsible commode, known as a "chaise percée", which was a padded seat with a chamber pot underneath. It is estimated that there were only three hundred of these at any one time. Although it was forbidden to dump the contents of these chamber pots out of windows, the practice persisted in the inner courts of the palace.