Royal Opera of Versailles
Lully’s "Persée" — written in 1682 , the year Louis XIV moved into the palace — inaugurated the Opéra on 16 May 1770 in celebration of the marriage of the dauphin — the future Louis XVI — to Marie Antoinette . 
<triplet> Louis XVI <subj> Marie Antoinette <obj> spouse <triplet> Marie Antoinette <subj> Louis XVI <obj> spouse