Given the below context:  Antoine's marriage to Marie of Lorraine was unhappy and yielded only two daughters. Monaco's constitution confined the throne to members of the Grimaldi family alone, and Antoine was thus keen for his daughter Princess Louise-Hippolyte (Illustration 11) to wed a Grimaldi cousin. However, the state of the Grimaldi fortunes, and the lack of (the politically necessary) approval from King Louis XIV, dictated otherwise. Louise-Hippolyte was married to Jacques de Goyon Matignon, a wealthy aristocrat from Normandy. Louise-Hippolyte succeeded her father as sovereign of Monaco in 1731 but died just months later. The King of France, confirming Monaco's subservient state to France, ignored the protests of other branches of the Grimaldi family, overthrew the Monégasque constitution, and approved the succession of Jacques de Goyon Matignon as Prince Jacques I.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. Ironically, 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...  Guess a valid title for it!
Answer:
Prince's Palace of Monaco