NET
10 When Athaliah the mother of Ahaziah saw that her son was dead, she was determined to destroy the entire royal line of Judah.
Darby
10 And when Athaliah the mother of Ahaziah saw that her son was dead, she rose up and exterminated all the royal seed of the house of Judah.
KJV
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.