Genealogy of Jesus Christ - Ahaziah

In the twelfth year of Joram the son of Ahab king of Israel did Ahaziah the son of Jehoram king of Judah begin to reign.
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.
And he walked in the way of the house of Ahab, and did evil in the sight of the LORD, as did the house of Ahab: for he was the son in law of the house of Ahab.
And he went with Joram the son of Ahab to the war against Hazael king of Syria in Ramothgilead; and the Syrians wounded Joram.
And king Joram went back to be healed in Jezreel of the wounds which the Syrians had given him at Ramah, when he fought against Hazael king of Syria. And Ahaziah the son of Jehoram king of Judah went down to see Joram the son of Ahab in Jezreel, because he was sick.

So Jehu the son of Jehoshaphat the son of Nimshi conspired against Joram. (Now Joram had kept Ramothgilead, he and all Israel, because of Hazael king of Syria.

So Jehu rode in a chariot, and went to Jezreel; for Joram lay there. And Ahaziah king of Judah was come down to see Joram.

And it came to pass, when Joram saw Jehu, that he said, Is it peace, Jehu? And he answered, What peace, so long as the whoredoms of thy mother Jezebel and her witchcrafts are so many?
And Joram turned his hands, and fled, and said to Ahaziah, There is treachery, O Ahaziah.
And Jehu drew a bow with his full strength, and smote Jehoram between his arms, and the arrow went out at his heart, and he sunk down in his chariot.

But when Ahaziah the king of Judah saw this, he fled by the way of the garden house. And Jehu followed after him, and said, Smite him also in the chariot. And they did so at the going up to Gur, which is by Ibleam. And he fled to Megiddo, and died there.
And his servants carried him in a chariot to Jerusalem, and buried him in his sepulchre with his fathers in the city of David.

... So the house of Ahaziah had no power to keep still the kingdom.
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.