2 Kings 8:26
Two and twenty years old was Ahaziah when he began to reign; and he reigned one year in Jerusalem. And his mother’s name was Athaliah, the daughter of Omri king of Israel.
Cross-reference
2 Kings 8:18 explains that Jehoram married Ahab's daughter — Athaliah, mother of Ahaziah — showing the evil influence of the house of Ahab.
2 Kings 9:21-27 recounts Ahaziah's death at Jehu's hands — the tragic end of the king introduced here, fulfilling his one-year reign.
2 Kings 11:1 shows Athaliah, Ahaziah's mother from the main verse, slaughtering the royal family after his death — a direct outcome.
2 Kings 11:13-16 recounts Athaliah's execution — the end of the queen mother introduced in the main verse, tying Ahaziah's lineage to its violent conclusion.
2 Kings 13:1 dates Jehoahaz's reign to Joash (son of Ahaziah) — linking the main verse's king to his successor and the timeline.
2 Chronicles 22:2 gives Ahaziah's age as 42 instead of 22 — a notable textual variant. Both agree his mother was Athaliah.
2 Chronicles 22:5-8 gives the fuller story of Ahaziah's alliance with Joram and states his destruction was from God — adding divine causation.
2 Chronicles 18:1 records Jehoshaphat's alliance with Ahab — the marriage that eventually produced Ahaziah via Athaliah.