Prince François, Count of Thorigny

Prince François of Monaco, Count of Thorigny (François Charles; 4 February 1726 – 9 December 1743) was a Monégasque prince and member of the House of Grimaldi. He was known by his title Count of Thorigny. 
Life.
Born in Paris. 
Born at the "Hôtel Matignon"" in Paris, he was the eighth child of the reigning Princess Louise Hippolyte of Monaco and her husband Prince Jacques I. His father was the Count of Thorigny but the title was given to François. His older brother Honoré III would later become the next Prince of Monacao when their father died in 1751. 
He died unmarried and childless