Arsames was the son of Ariaramnes and the grandfather of Darius I. He was traditionally claimed to have briefly been king of Persia during the Achaemenid dynasty, and to have given up the throne and declared loyalty to his relative Cyrus II of Persia before retiring to his family estate in the Persian heartland of Parsa, living there peacefully for the rest of his life, perhaps nominally exercising the duties of a "lesser king" under the authority of the "Great King". Wikipedia