2 Kgs 22:1

בֶּן־שְׁמֹנֶ֤ה שָׁנָה֙ יֹאשִׁיָּ֣הוּ בְמָלְכ֔וֹ וּשְׁלֹשִׁ֤ים וְאַחַת֙ שָׁנָ֔ה מָלַ֖ךְ בִּירוּשָׁלִָ֑ם וְשֵׁ֣ם אִמּ֔וֹ יְדִידָ֥ה בַת־עֲדָ֖יָה מִבָּצְקַֽת׃

Josiah was eight years old when he became king, and he reigned in Jerusalem thirty-one years. His mother’s name was Jedidah daughter of Adaiah; she was from Bozkath.