The Nuttall Encyclopedia
A pile of buildings in Paris, of which the nucleus was a palace built in 1629 by Lemercier for Richelieu, and known afterwards as the Palais Cardinal, and which at length by gift of Louis XIV. became the town residence of the Orleans family; these buildings suffered much damage in 1848 and in 1871, but have been restored since 1873.
Wood, James, ed. Entry for 'Palais Royal'. The Nuttall Encyclopedia. https://www.studylight.org/encyclopedias/eng/nut/p/palais-royal.html. Frederick Warne & Co Ltd. London. 1900.