'Princes' in the Bible

Now Ahab had seventy sons in Samaria. And Jehu wrote letters, and sent to Samaria, to the princes of Jizreel, to the elders, and to Ahab's guardians, saying,

And she looked, and behold, the king stood on the dais, according to the custom, and the princes and the trumpeters were by the king; and all the people of the land rejoiced, and blew with trumpets. And Athaliah rent her garments and cried, Conspiracy! Conspiracy!

And Jehoiachin king of Judah went out to the king of Babylon, he, and his mother, and his servants, and his princes, and his chamberlains; and the king of Babylon took him in the eighth year of his reign.

And he carried away all Jerusalem, and all the princes, and all the mighty men of valour, ten thousand captives, and all the craftsmen and smiths: none remained but the poorest sort of the people of the land.