Then Jehu went in and ate and drank. “Take care of this cursed woman,” he said, “and bury her, for she was the daughter of a king.”
The greatest delinquent in the house of Ahab was Jezebel: it was she that introduced Baal, slew the Lord's prophets, contrived the murder of Naboth, stirred up her husband first, and then her sons, to do wickedly; a cursed woman she is here called (Kg2 9:34), a curse to the country, and whom all that wished well to their country had a curse for.
Commenting on 2 Kings 9:30-37
And when he was come in, he did eat and drink, and said, Go, see now this cursed [woman], and bury her: for she [is] a king's daughter. (o) That is, of the king of Zidon, .
She is a king's daughter - Jezebel was certainly a woman of a very high lineage. She was daughter of the king of Tyre; wife of Ahab, king of Israel; mother of Joram, king of Israel; mother-in-law of Joram, king of Judah; and grandmother of Ahaziah, king of Judah.