'Rulers' in the Bible

Ahab had seventy sons [and grandsons] in Samaria. So Jehu wrote letters and sent them to Samaria, to the rulers of Jezreel, to the elders, and to the guardians of the children of Ahab, saying,

Then he took the captains of hundreds, the Carites (royal bodyguards), the guard, and all the people of the land; and they brought the [young] king down from the house of the Lord, and came by way of the guards’ gate to the king’s house. And [little] Joash sat on the throne of the kings.