Eylau was ordered as one of fourteen second-rank, 100-gun sailing for the French Navy, but was converted to a 90-gun steam-powered ship in the 1850s while under construction. Completed in 1857 the ship participated in the Second Italian War of Independence in 1859 and the initial stages of the Second French intervention in Mexico before she was converted into a troopship in 1862 or 1863. "Eylau" was hulked in 1877 and served as a barracks ship until she was scrapped in 1905.