In Samaria - The family of Ahab had made Jezreel a sort of second capital, and had reigned there, at least in part 2 Kings 9:15-30. Jehu and his descendants seem to have fixed their residence wholly in Samaria 2 Kings 13:1, 2Ki 13:10; 2 Kings 14:23; 2 Kings 15:8.
Related Commentaries of 2 Kings 10:36
2 Kings 10:36
36 And the timel that Jehu reigned over Israel in Samaria was twenty and eight years.