2 Samuel 21:8-9

8Instead, the king took Saul's two sons, Armoni and Mephibosheth. Aiah's daughter Rizpah was their mother. He also took the five sons of Saul's daughter Merab. Adriel, the son of Barzillai from Meholath, was their father.

9He gave them to the Gibeonites. The Gibeonites hanged them on a hill where people worshipped the Lord. All seven of them died together. That happened at the time when the barley harvest was beginning.