2 Samuel 2:10

Ish–bosheth Saul’s son was forty years old when he began to reign over Israel, and reigned two years. But the house of Judah followed David.

Cross-reference

2 Samuel 3:14 Historical context

In 2 Samuel 3:14, David demands his wife Michal from Ish-bosheth, the same king introduced here as ruling over Israel.