Analysis of information sources in references of the Wikipedia article "Palais-Royal" in Romanian language version.
...between 1633 and 1639, Richelieu built a princely palace... which he bequeathed to the King. Known initially as the Palais-Cardinal, when the royal family moved in after Richelieu's death it gained the name it has held ever since, – the Palais-Royal.
He (Lemercier) began the Palais-Cardinal at Paris in 1629, which, after its donation to the king, was known as the Palais Royal.