2 Chronicles 22:9-11

New International Version

⁹ He then went in search of Ahaziah, and his men captured him while he was hiding^(A) in Samaria. He was brought to Jehu and put to death. They buried him, for they said, “He was a son of Jehoshaphat, who sought^(B) the Lord with all his heart.” So there was no one in the house of Ahaziah powerful enough to retain the kingdom.

Athaliah and Joash^(C)

¹⁰ When Athaliah the mother of Ahaziah saw that her son was dead, she proceeded to destroy the whole royal family of the house of Judah. ¹¹ But Jehosheba,^[a] the daughter of King Jehoram, took Joash son of Ahaziah and stole him away from among the royal princes who were about to be murdered and put him and his nurse in a bedroom. Because Jehosheba,^[b] the daughter of King Jehoram and wife of the priest Jehoiada, was Ahaziah’s sister, she hid the child from Athaliah so she could not kill him.