WAEC - Christian Religious Knowledge Crk (2017 - No. 25)

So the city was besieged till the eleventh year of King Zedekiah...

This reference alludes to

Mataniah, King of Judah

Cyrus, King of persia

Nebuchadnezzar King Babylon.

Ashurbanipal, King of Assyria

king Nebuchadnezzar of Babylon had laid seige on the city of jerusalem after king zedekiah rebelled against him.
jeremiah 52:5