It was on this day in 1758 that HSH Prince Honore IV of Monaco was born. He was the eldest son of Prince Honore III of Monaco and his wife Princess Marie-Catherine de Brignole-Sale. He had a rather tragic life among the princes of Monaco. He inherited his throne when there was no throne to inherit as Revolutionary France had taken over Monaco and exiled the Grimaldis. He suffered from chronic depression, which was not helped by his controversial wife Princess Marie-Felicite. His health was further ruined serving in Napoleon's forces. He saw his principality restored but was too ill to actually rule. He abdicated in 1815, four years before his death.