text: Jacques I assumed the name and arms of the Grimaldi, but the French aristocracy showed scant respect towards the new prince who had risen from their ranks and chose to spend his time absent from Monaco. He died in 1751 and was succeeded by his and Louise-Hippolyte's son Prince Honoré III.
  Honoré III married Catherine Brignole in 1757 and later divorced her. Before his marriage, Honoré III had been conducting an affair with his future mother-in-law. After her divorce Marie Brignole married Louis Joseph de Bourbon, prince de Condé, a member of the fallen French royal house, in 1798.
  The Grimaldi fortunes were restored when descendants of both Hortense Mancini and Louis I married: Louise d'Aumont Mazarin married Honoré III's son and heir, the future Honoré IV. This marriage in 1776 was extremely advantageous to the Grimaldi, as Louise's ancestress Hortense Mancini had been the heiress of Cardinal Mazarin. Thus Monaco's ruling family acquired all the estates bequeathed by Cardinal Mazarin, including the Duchy of Rethel, and the Principality of Château-Porcien.
  Honoré III was a soldier who fought at both Fontenoy and Rocourt. He was happy to leave Monaco to be governed by others, most notably a former tutor. It was on one of Honoré III's rare visits to the palace in 1767 that illness forced Edward, Duke of York, to land at Monaco. The sick duke was allocated the state bedchamber where he promptly died. Since that date the room has been known as the York Room.