The King of Zeno was the title of the most powerful individual in the Milky Way. If a female was the ruler of Zeno, such as Elizabeth Ion, it would simply be modified to "Queen of Zeno". The title was mainly attributed during the Zeno-Ion Imperial Order's existence. Any starship a king/queen owned would have "HMS" in front of it. Examples of this are: HMS Revelation, HMS Swift Striker II, and HMS Lionheart. "HMS" stands for "His/Her Majesty's Ship". The ruler of Zeno also acquired a special Zenox Power Token that had unlimited value on it. This made the King of Zeno the most richest individual in Reality.