Conversation so far:
Are there any other interesting aspects about this article?
Rosenberg was captured by Allied troops at the end of the war in Flensburg-Murwik.
What happened after he was captured?
He was tried at Nuremberg and found guilty of all four counts.
How long was his sentence?
He was sentenced to death and executed with other condemned co-defendants at Nuremberg Prison.

Question: When was he executed?
Self-contained rewrite: When was Alfred Rosenberg executed?