2 Chronicles 22:10
But when Athaliah the mother of Ahaziah saw that her son was dead, she arose and destroyed all the seed royal of the house of Judah.
Cross-references
2 Chronicles 22:2–4
Historical context
2 Chronicles 22:2-4 shows Athaliah influencing Ahaziah's evil reign — explaining why she seizes power in 22:10 after his death.
2 Chronicles 21:4
Contrast
2 Chronicles 21:4 describes Jehoram murdering his brothers to secure the throne — mirroring Athaliah's later massacre of the royal heirs.
2 Chronicles 23:15
Parallel
2 Chronicles 23:15 records Athaliah's execution at the Horse Gate, the direct consequence of her earlier massacre of the royal heirs.
2 Kings 11:1
Parallel
2 Kings 11:1 gives the parallel account of Athaliah destroying the royal heirs after Ahaziah's death.