Wagner's "Rienzi"

Dwight Peterson says: "The first performance of Richard Wagner's "Rienzi" in Dresden in October 1842 lasted six hours, and it is said he contemplated making two operas out of it".

RH:
There was a break for dinner- It would be interesting to have details of Hitler's response to the opera, which so influenced him. Did the opera have some influence on Hitler's operatic oratory?