1 Chronicles 10:6-7
6-7So Saul and his three sons—all four the same day—died. When all the Israelites in the valley saw that the army had fled and that Saul and his sons were dead, they abandoned their cities and ran off; the Philistines came and moved in.
8-10The next day the Philistines came to plunder the dead bodies and found Saul and his sons dead on Mount Gilboa. They stripped Saul, removed his head and his armor, and put them on exhibit throughout Philistia, reporting the victory news to their idols and the people. Then they put Saul's armor on display in the temple of their gods and placed his skull as a trophy in the temple of their god Dagon.