2KI 11:2

2 But Yehosheva Bat HaMelech Yoram, achot Achazyahu, took Yoash ben Achazyah, and stole him from among the Bnei HaMelech which were being slain; and they hid him, even him and his nurse, in the cheder hamittot [(bedroom)] from Atalyah, so that he was not slain.