The term "Seydlitz" primarily refers to the German battleship SMS Seydlitz, which was active during World War I. Launched in 1913, it was a part of the Imperial German Navy and played a significant role in naval battles, including the Battle of Jutland. The ship was known for its speed and firepower, making it a formidable opponent. Additionally, "Seydlitz" can refer to Hans von Seydlitz, a notable Prussian general during the Seven Years' War. He was recognized for his innovative cavalry tactics and played a crucial role in several key battles, contributing to the military strategies of his time.