The SMS Derfflinger was a German battlecruiser launched in 1913, part of the Imperial German Navy. It was named after the 17th-century general Hans von Derfflinger and was designed for speed and firepower, featuring eight 12-inch guns. The ship played a significant role in naval battles during World War I, including the Battle of Jutland in 1916. After the war, the SMS Derfflinger was surrendered to the Allies and eventually scuttled in 1921. Its design influenced future naval architecture, showcasing the shift towards larger, more powerful warships in the early 20th century.