Darius II, son of Artaxerxes I, ruled Persia from 423–404 BCE. His reign focused on stabilizing the empire, managing court dynamics, and preparing his heirs. With the guidance of Queen Parysatis, he strengthened the royal household, ensured succession, and maintained loyalty among satraps and officials. Darius II’s leadership showcased prudence, strategy, and a deep understanding of family, leaving a lasting legacy in Persian history.