Description: (Prince)
Honoré IV served as the Prince of Monaco and Duke of Valentinois from 1814 until his passing in 1819. During his reign, he faced health challenges that necessitated a regency led by his brother Joseph Grimaldi and his son Prince Honoré V to manage state affairs. Despite his illness limiting his direct involvement, Honoré IV's leadership and governance set the foundation for the regency to effectively oversee the principality during his tenure as ruler.