Jehoiada became the brother-in-law of King Ahaziah as a result of his marriage with princess Jehosheba.[1] Both Jehosheba and Ahaziah were children of King Jehoram of Judah (reigned c. 849 – 842 BCE) . Ahaziah died a year after assuming the throne, which was then usurped by his mother Athaliah, who ordered the execution of all members of the royal family.