QUESTION 345 : The Tale of a Hero

Alright!
Here we go again! :)
There are 4 seemingly unconnected pictures. Okay, let me assure you this : They had nothing to do with each other. They all share a name. That of a legend. That of a hero. Makes his appearance in many a German Play/Opera.
A shows a statue depicting one of his exploits.
D does the same.
B is a picture of a Swedish monk(Saint)
C is a poet.
All share this name.
Which name?

A

Here are 4 images  

B                                       C

D