Jacques I, Prince of Monaco

Jacques I

Jacques I of Monaco
Portrait by Nicolas de Largillière
Prince of Monaco
Reign 29 December 1731 –
7 November 1733
Predecessor Louise Hippolyte
Successor Honoré III
Prince consort of Monaco
Reign 20 February – 29 December 1731
Born (1689-11-21)21 November 1689
Torigni-sur-Vire, Normandy, France
Died 23 April 1751(1751-04-23) (aged 61)
Hôtel Matignon, Paris, France
Spouse Louise Hippolyte, Princess of Monaco
Prince Antoine, Marquis des Baux
Princess Charlotte
Honoré III, Prince of Monaco
Prince Charles, Count of Carladés
Prince Jacques
Princess Louise
Prince François, Count of Thorigny
Prince Charles Maurice, Count of Valentinois
Princess Marie
Full name
Jacques François Léonor Goyon de Matignon Grimaldi
House Grimaldi
Father Jacques Goyon de Matignon
Mother Charlotte, Comtesse de Thorigny

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.

Life and reign

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 wife Marie de Lorraine-Armagnac was looking for a consort for his daughter and heir Louise Hippolyte of Monaco, the family proposed him as a candidate. His candidacy was supported by King Louis XIV of France, who wanted to solidify French influence in Monaco.

Jacques and Louise Hippolyte married on 20 October 1715 and had nine children. The wedding ceremony was the first official act that the five-year-old king, Louis XV, carried out during the Regency of Philippe II, Duke of Orléans.

The marriage wasn't very happy. Jacques preferred to stay more in Versailles than in Monaco, where he had several mistresses.

After the death of Antonio I of Monaco, Louise Hippolyte traveled from Paris to Monaco on 4 April 1731 and received an enthusiast reception by the population. When Jacques joined her several times later, the reception was much colder.

At the end of 1731, Louise Hippolyte died of smallpox. Jacques I neglected the affairs of state and, under pressure from the population, had to leave the country in May 1732. He abdicated in favor of his son Honoré the next year.

He spent the last years of his life in Versailles and Paris. It was at Versailles that Louise-Françoise de Bourbon-Maine, a grand daughter of Louis XIV and his mistress, Madame de Montespan, was proposed as a wife for the widowed prince; despite having a large dowry, (she was the daughter of the Louis-Auguste de Bourbon, duc du Maine and his wife, Anne Louise Bénédicte de Bourbon) the marriage never materialised and the prince never married again.

His Paris residence was named after him Hôtel Matignon and is today the official residence of the Prime Minister of France. Prior to his death, he was a frequent visitor to Versailles with his son.


  1. Antoine Charles Marie (16 December 1717 – 4 February 1718), "Marqis des Baux Comte de Matignon".
  2. Charlotte Thérèse Nathalie (19 March 1719 – 1790), nun at the Convent of Visitation in Paris.
  3. Honoré III Camille Léonor (10 November 1720 – 21 March 1795), successor of his father.
  4. Charles Marie Auguste (1 January 1722 – 24 August 1749), "Count of Carladés".
  5. Jacques (9 June 1723 – June 1723).
  6. Louise Françoise (15 July 1724 – 15 September 1729), Mademoiselle des Baux.
  7. François Charles (4 February 1726 – 9 December 1743), "Comte de Thorigny".
  8. Charles Maurice (14 May 1727 – 18 January 1798), Count of Valentinois; married on 10 November 1749 to Marie Chrétienne de Rouvroy; no issue.
  9. Marie Françoise Thérése (20 July 1728 – 20 June 1743), Mademoiselle d'Estouteville.


Regnal titles
Preceded by
Louise Hippolyte
Sovereign Prince of Monaco
29 December 1731 7 November 1733
Succeeded by
Honoré III
Monegasque royalty
Preceded by
Marie de Lorraine-Armagnac
Prince consort of Monaco
20 February – 29 December 1731
Succeeded by
Maria Caterina Brignole-Sale
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