For a detailed in depth description see the excellent article on Wikipedia here, It is the fifth such chapel. I had no idea! This present fifth chapel is a masterpiece by Jules Hardouin-Mansart begun in 1689 and consecrated in 1710. (This reminds me that Versailles must have been a building site much of Louis XIV'S reign : rather like the city of London now - different style of course).
Te Deums will have been sung here to celebrate victories and birth of children marriages, deaths etc.
Last year I saw advertised recreations of such performances : prices were astronomical and I regret I did not use Eurostar to Paris to attend! Therefore it is with pleasure that I am featuring some little videos to give the mood.
There is some nice atmosphere here. Watch a little to get the idea.Grand Dialogue by Louis Marchand played on the 1710 Cliquot organ
Now this is the real thing! Period instruments including a serpent recorded in the chapel, The famous Te Deum (Eurovision music) is very jolly! Chapelle Royale de Versailles, playing Marc Antoine CHARPENTIER, Te Deum, Conductor Martin Gester, Le Parlement de Musique. This is terrific!