1 Chronicles 10:6-8

New International Version

⁶ So Saul and his three sons died, and all his house died together.

⁷ When all the Israelites in the valley saw that the army had fled and that Saul and his sons had died, they abandoned their towns and fled. And the Philistines came and occupied them.

⁸ The next day, when the Philistines came to strip the dead, they found Saul and his sons fallen on Mount Gilboa.