2 Kings 10:7-8

10:7 When they received the letter, they seized the king’s sons and executed all seventy of them. They put their heads in baskets and sent them to him in Jezreel. 10:8 The messenger came and told Jehu, “They have brought the heads of the king’s sons.” Jehu said, “Stack them in two piles at the entrance of the city gate until morning.”

2 Kings 18:9

18:9 In the fourth year of King Hezekiah’s reign (it was the seventh year of the reign of Israel’s King Hoshea, son of Elah), King Shalmaneser of Assyria marched up against Samaria and besieged it.