Hamutal (חֲמוּטַל) means "father-in-law is dew" in Hebrew. In 2 Kings 23:31, Hamutal was the daughter of Jeremiah of Libnah and the wife of King Josiah — mother of Kings Jehoahaz and Zedekiah of Judah.
Rare but iconic in biblical scholarship.
Hamutal reduces to eight — the number of biblical queen-mother.