How did manasseh die?

According to the biblical account in 2 Kings 21:18-20, King Manasseh of Judah died after reigning for 55 years. He was buried in the garden of his palace, and his son Amon succeeded him. The specifics of his death are not detailed in the scriptures, but it is noted that he had a tumultuous reign, marked by idolatry and a return to the worship of Yahweh before his death.