Who had the dominion in Moab - Moab was conquered by David 2 Samuel 8:2, and again by Omri, after which it remained subject until the death of Ahab 2 Kings 3:5. But a more ancient rule, in times of which we have no further record, is probably intended.
Related Commentaries of 1 Chronicles 4:22
1 Chronicles 4:22
22 And Jokim, and the men of Chozeba, and Joash, and Saraph, who had the dominion in Moab, and Jashubilehem. And these are ancient things.