1 Kings 15:10 KJV

And forty and one years reigned he in Jerusalem. And his mother’s name was Maachah, the daughter of Abishalom.
1 Kings 15:10, King James Version

In context

9 And in the twentieth year of Jeroboam king of Israel reigned Asa over Judah.

10 And forty and one years reigned he in Jerusalem. And his mother’s name was Maachah, the daughter of Abishalom.

11 And Asa did that which was right in the eyes of the Lord, as did David his father.