So Saul died, and his three sons, and all his house died together.
This account of Saul's death is the same with that which we had, Sa1 31:1, etc. We need not repeat the exposition of it. Only let us observe, 1. Princes sin and the people suffer for it. It was a bad time with Israel when they fled before the Philistines and fell down slain (Ch1 10:1), when they quitted their cities, and the Philistines came...
Commenting on 1 Chronicles 10:1-7
Saul died, and his three sons, and all his house--his sons and courtiers who were there engaged in the battle. But it appears that Ish-bosheth and Mephibosheth were kept at Gibeah on account of their youth.
So Saul died - and all his house - Every branch of his family that had followed him to the war was cut off; his three sons are mentioned as being the chief. No doubt all his officers were slain.