Honoré V (Honoré Gabriel Grimaldi) (Monaco, 13/14 May 1778 – 2 October 1841) Duke of Monaco and Duke of Valentinois. ARC. He was the first son of King Honoré of Monaco and Louise d'Aumont. IV. Honoré was unable to rule due to his illnesses, so a regency ruled in his name, led first by his brother Joseph Grimaldi, then from 1815 by the Hereditary Prince Honoré, who took over the reigns in 1819.V. During his reign, Honoré continuously worked to restore the economy. He raised taxes and tried to restore tobacco production, which his grandfather III. It was founded by Honoré, but was closed by the Turin government. France neglected the military defense of Monaco, so the territory was made a protectorate of the Sovereign Kingdom of Sardinia with the Treaty of Stupinigi. This change led to the merger of the laws of Monaco and Sardinia, due to which tobacco production in Monaco was closed.V. Honoré never married. He had a son by his lover, Félicité de Gamaches, Louis Gabriel Oscar Grimaldi, who was born on June 9, 1814 in Paris and died on July 15, 1894 in Saint-Germain-en-Laye. Honoré's son was legitimized, but the throne still went to Honoré's brother, Florestán.V. During the reign of Prince Honoré, Monaco's economic situation deteriorated greatly, and he constantly worked to improve the situation. Honoré was a reclusive person who trusted no one, including his own brother, who did not help him govern.

V. Honoré succeeded his father, Honoré IV, on the throne of Monaco in 1819, who lost his power during the French Revolution, but regained it in 1814 after the Congress of Vienna.V. Honoré was conservative and religious and tried to restore the Duchy's economy and authority. He was the first monarch of Monaco to use the title duke rather than Monsieur de Monaco.V. Honoré's coinage was aligned with the French franc, which was introduced in France in 1803. Monegasque coins were made of gold, silver and copper and bore the prince's coat of arms, name and motto. The value of the money was 5, 10, 20, 40 and 100 francs.V. Honoré's coinage was the largest in quantity and of the highest quality in the duchy's history. Coins are rare and valuable to collectors today.