Melaḵim Bĕt (2 Kings) 11:2

But Yehosheḇa, the daughter of Sovereign Yoram, sister of Aḥazyahu, took Yo’ash son of Aḥazyah, and stole him away from among the sons of the sovereign’s sons who were put to death. So they hid him and his nurse in the bedroom, from Athalyahu, and he was not put to death.