surmise > accusation, accusations

8 Condemned to that dungeon merciless,

merciless > without hope of mercy; or: merciless [that merciless dungeon]

9 Where they should live in woe, and die in wretchedness.

105.47

There was that great proud king of Babylon,
2 That would compell all nations to adore,
And him as onely God to call vpon,
4 Till through celestiall doome throwne out of dore,
Into an Oxe he was transform'd of yore:
6 There also was king Cr{ae}sus, that enhaunst
His heart too high through his great riches store;
8 And proud Antiochus, the which aduaunst
His cursed hand gainst God, and on his altars daunst.

1 There was that great proud king of Babylon,

king of Babylon > (Nebuchadnezzar (- 562 BC); see Dan. 1-4)

2 That would compel all nations to adore,

adore > [adore him]