French ship Henri IV
The Henri IV was a 100-gun ship of the line of the French Navy, named after Henry IV of France. She was launched in 1848. Her shipwreck in a storm off Sebastopol in 1854 marked the beginnings of French meteorology. History. "Henri IV" was the last warship launched under Louis Philippe I and also saw service under the French Second Republic and Second French Empire. She was commanded by Louis Henri de Gueydon from 1850 to 1852 and took part in the bombardment of Salé on 26 November 1851, suffering major damage and losing her  main mast. She also fought in the Crimean War, including the Siege of Sevastopol. A major hurricane took the Allied fleet by surprise off the coast of Eupatoria on 14 November 1854, sinking the "Henri IV" and the corvette "Pluton". They were two of 38 French, Ottoman and British ships lost in November 1854. The sinking of the "Henri IV" proved a spur to French meteorological research.