Sh'mu'el Bet (2 Sa) 21:8-13

The king took the two sons of Ritzpah the daughter of Ayah, whom she bore to Sha’ul, Armoni and M’fivoshet; and the five sons of Mikhal the daughter of Sha’ul, whom she bore to Adri’el the son of Barzillai the Mecholati; and handed them over to the Giv‘onim, who hanged them on the hill before ADONAI. All seven died; they were put to death during the first days of the harvest season, at the beginning of the barley harvest. Ritzpah the daughter of Ayah took sackcloth, spread it out toward a cliff for herself and stayed there from the beginning of the harvest until water was poured out on the bodies from the sky, not letting the birds land on them during the day or the wild animals at night. David was told what Ritzpah the daughter of Ayah, the concubine of Sha’ul, had done. So David went and took the bones of Sha’ul and the bones of Y’honatan his son from the men of Yavesh-Gil‘ad, who had stolen them from the open square of Beit-Sh’an, where the P’lishtim had hanged them at the time the P’lishtim had killed Sha’ul at Gilboa; and he brought up from there the bones of Sha’ul and the bones of Y’honatan his son. They also gathered the bones of those who had been hanged.