Complex sentence: She was completed on 3 September, 1803 during the Napoleonic Wars, but her name was changed from HMS "Pallas" to "Shannon" shortly before construction, traditionally an omen of bad luck for a ship.
Split into simpler sentences: She was completed on 3 September, 1803 during the Napoleonic Wars. Her name was changed from "Pallas" to "Shannon" shortly before construction, traditionally an omen of bad luck for a ship.