In the eleventh year - The twelfth according to 2 Kings 8:25. The discrepancy may be best explained from two ways of reckoning the accession of Ahaziah, who is likely to have been regent for his father during at least one year. See 2 Chronicles 21:19.
Related Commentaries of 2 Kings 9:29
2 Kings 9:29
29 And in the eleventh year of Joram the son of Ahab began Ahaziah to reign over Judah.