וְאַרְבָּעִ֤ים וְאַחַת֙ שָׁנָ֔ה מָלַ֖ךְ בִּירוּשָׁלִָ֑ם וְשֵׁ֣ם אִמּ֔וֹ מַעֲכָ֖ה בַּת־אֲבִישָׁלֽוֹם׃
And forty and one years reigned he in Jerusalem; and his mother’s name was Maacah the daughter of Abishalom.
Read kabbalistic (mystical) interpretation of I Kings 15:10: and classical mystical sources.