2 Chronicles 22:1
And the inhabitants of Jerusalem made Ahaziah his youngest son king in his stead: for the band of men that came with the Arabians to the camp had slain all the eldest. So Ahaziah the son of Jehoram king of Judah reigned.
Cross-references
2 Chronicles 22:9 describes Ahaziah's capture and death by Jehu, completing the narrative of his short reign.
2 Chronicles 21:16 notes that God stirred up Philistines and Arabians against Jehoram — the divine cause of the invasion that left Ahaziah as heir.
2 Chronicles 21:17 recounts Arabians capturing Jehoram's sons, leaving only Ahaziah — the direct reason why the youngest became king in 22:1.
2 Chronicles 23:3 shows Jehoiada presenting Joash (Ahaziah's son) as king, proving the Davidic line continued through Ahaziah despite Athaliah's usurpation.
2 Chronicles 24:7 attributes temple desecration to 'sons of Athaliah' — Ahaziah's family, showing their wickedness.
2 Kings 8:24-29 provides the parallel account of Ahaziah's succession and reign, corroborating the same historical events from a different book.
2 Kings 8:18 shows Jehoram married Ahab's daughter, linking Ahaziah's mother Athaliah to the evil house of Ahab.
2 Kings 9:29 gives the synchronism: Ahaziah began reigning in Joram's 11th year, confirming his short one-year reign.
2 Kings 10:13 records Jehu killing Ahaziah's 'brethren' — further slaughter of his royal relatives.
1 Chronicles 3:11 lists Ahaziah as Jehoram's son in the genealogical record, confirming his legitimate place in the Davidic lineage.