5
And when his armourbearer*saw that Saul was dead, he fell likewise on the sword, and died.
6
So Sauldied, and his threesons, and all his housediedtogether.
7
And when all the men of Israel that were in the valleysaw that they fled, and that Saul and his sons were dead, then they forsook their cities, and fled: and the Philistinescame and dwelt in them.
This part, 1Ch 10:1-12 which gives an account of the last battle of Saul with the Philistines, and of his death and burial, is the same with 1Sa 31:1-13 see the notes there; the cause of his death follows in 1Ch 10:13.