Strange little verse V Letters

Description

A strange verse, probably referring to a certain place in Kuttenberg.

Text

A proper scholar knows his Saints!

St. George has struck with his deadly spear,
The dragon bleeds and writhes in fear.
But St. George is not done yet.
Beneath his helm he turns his head.
He fixes his gaze towards the east
Where there spawns another beast.
This dragon though from rock is made.
In its throat a window will come to your aid.