1 Kings 15:27

15:27 Baasha son of Ahijah, from the tribe of Issachar, conspired against Nadab and assassinated him in Gibbethon, which was in Philistine territory. This happened while Nadab and all the Israelite army were besieging Gibbethon.

1 Kings 15:33

Baasha’s Reign over Israel

15:33 In the third year of Asa’s reign over Judah, Baasha son of Ahijah became king over all Israel in Tirzah; he ruled for twenty-four years.