Josiah () or Yoshiyahu was the 16th King of Judah (c. 640–609 BCE). According to the Hebrew Bible, he instituted major religious reforms by removing official worship of gods other than Yahweh. Until the 1990s, the biblical description of Josiah’s reforms were usually considered to be more or less accurate, but that is now heavily debated. According to the Bible, Josiah became king of the Kingdom of Judah at the age of eight, after the assassination of his father, King Amon and reigned for 31 years, from 641/640 to 610/609 BCE.
https://en.wikipedia.org/wiki/Josiah