When did Nebuchadnezzar come to Jerusalem?
In the third year of the reign of Jehoickim. Sometime after the fourth year.
Dan.1:1
In the third year of the reign of Jehoiakim king of Judah came Nebuchadnezzar king of Babylon unto Jerusalem.
Jer.25:1
In the fourth year of Jehoiakim the son of Josiah king of Judah, that was the first year of Nebuchadrezzar king of Babylon.