From Shelley's response to the Peterloo Massacre, 1819:
I met Murder on the way -
He had a mask like Castlereagh -
Very smooth he looked, yet grim;
Seven blood-hounds followed him:
All were fat; and well they might
Be in admirable plight,
For one by one, and two by two,
He tossed them human hearts to chew
Which from his wide cloak he drew.
Next cam Fraud, and he had on,
Like Eldon, an ermined gown;
His big tears, for he wept well,
Turned to mill-stones as they fell.
And the little children, who
Round his feet played to and fro,
Thinking every tear a gem,
Had their brains knocked out by them.
Clothed with the Bible, as with light,
And the shadows of the night,
Like Sidmouth, next, Hypocrisy
On a crocodile rode by.
Last came Anarchy: he rode
On a white horse, splashed with blood;
He was pale even to the lips,
Like Death in the Apocalypse.
And he wore a kingly crown;
And in his grasp a sceptre shone;
On his brow this mark I saw -
'I AM GOD, AND KING, AND LAW!"
With a pace stately and fast,
Over English land he passed,
Trampling to a mire of blood
The adoring multitude.
And a mighty troop around,
With their trampling shook the ground,
Waving each a bloody sword,
For the service of their Lord.
And with glorious triumph, they
Rode through England proud and gay,
Drunk as with intoxication
Of the wine of desolation.
And many more Destructions played
In this ghastly masquerade,
All disguised, even to the eyes,
Like Bishops, lawyers, peers, or spies.
The whole thing is here. I really like this like line from farther along:
As flowers beneath May's footstep waken,
As stars from Night's loose hair are shaken,
It ends with this famous call:
Rise like Lions after slumber
In unvanquishable number -
Shake your chains to earth like dew
Which in sleep had fallen on you -
Ye are many - they are few.