Monarchy of Monaco authority in the courts and tribunals which render justice in his or her name. Pursuant to Article 16 of the 1962 Constitution, the Sovereign Prince confers orders, titles and other distinctions (see Awards and decorations of Monaco) as the "fons honorum" of the Principality of Monaco. The Prince is styled "His Serene Highness". Although used only formally, the Prince also bears several other hereditary titles, some of which are occasionally bestowed on his relatives or their spouses. Some of these titles have merged with the Crown of Monaco as a result of the Grimaldi family's acquisition of various fiefs; they
Jacques I, Prince of Monaco Jacques I, Prince of Monaco Jacques Goÿon de Matignon (Jacques François Léonor; 21 November 1689 – 23 April 1751) was Count of Thorigny, Prince of Monaco as Jacques I, and the fourth Duke of Valentinois from 1731 until 1733. Jacques came from an ancient Norman family. "Thorigny" is now called Torigni-sur-Vire, where the "Mairie" is the former family chateau. His uncle was Marshal Charles Auguste de Goÿon de Matignon. He was a son of Jacques Goÿon de Matignon, "jure uxoris" Comte de Thorigny, and Charlotte Goyon de Matignon, Comtesse de Thorigny "suo jure". When Antonio I of Monaco and his