Robert de Cotte (1656 – 15 July 1735) was a French
architect-administrator, under whose design control of the royal buildings of
France from 1699, the earliest notes presaging the
Rococo style were introduced. First a pupil of
Jules Hardouin-Mansart, he later became his brother-in-law and his collaborator. After Hardouin-Mansart's death, de Cotte completed his unfinished projects, notably the royal chapel at
Versailles and the
Grand Trianon.