Now in the eighteenth year of king Jeroboam the son of Nebat reigned Abijam over Judah.
Three years reigned he in Jerusalem. And his mother's name was Maachah, the daughter of
Abishalom.
Now in the eighteenth year of king Jeroboam began Abijah to reign over
Judah. Three years reigned he in Jerusalem. His mother's
name also was Michaiah the daughter of Uriel.
The Biblically Correct answer: Maachah, the daughter of Abishalom
Since Second Chronicles was written several
centuries after First Kings and the Chronicler used 1 Kings as a source, any conflict between them
is easily resolved. The Biblically Correct answer will come from 1 Kings.