'Ruler' in the Bible

The Chaldeans answered before the king, and said, There is not a man on the earth who can show the king's matter, because no king, lord, or ruler, has asked such a thing of any magician, or enchanter, or Chaldean.

The king cried aloud to bring in the enchanters, the Chaldeans, and the soothsayers. The king spoke and said to the wise men of Babylon, Whoever shall read this writing, and show me its interpretation, shall be clothed with purple, and have a chain of gold about his neck, and shall be the third ruler in the kingdom.

But I have heard of you, that you can give interpretations, and dissolve doubts; now if you can read the writing, and make known to me its interpretation, you shall be clothed with purple, and have a chain of gold about your neck, and shall be the third ruler in the kingdom.

Then commanded Belshazzar, and they clothed Daniel with purple, and put a chain of gold about his neck, and made proclamation concerning him, that he should be the third ruler in the kingdom.