2 Chronicles 21:8
"In his days the Edomites revolted from under the dominion of Judah, and made themselves a king."
Cross References (ranked by relevance)
So the Edomites revolted from under the hand of Judah unto this day. The same time also did Libnah revolt from under his hand; because he had forsaken the LORD God of his fathers.
So the king of Israel went, and the king of Judah, and the king of Edom: and they fetched a compass of seven days’ journey: and there was no water for the host, and for the cattle that followed them.
And by thy sword shalt thou live, and shalt serve thy brother; and it shall come to pass when thou shalt have the dominion, that thou shalt break his yoke from off thy neck.
There was then no king in Edom: a deputy was king.