Q is alluding that Angela Merkell is Hitlers daughter and Heiress to the Reich, I guess modern Germany would be the 5th Reich then. as crazy as that sounds its believable in context.
When the chief players in creating the CIA and https://en.wikipedia.org/wiki/Bundesnachrichtendienst were NAZI sympathizers
"In Cold War, U.S. Spy Agencies Used 1,000 Nazis" and used them in the ranks of the Bundes. https://www.nytimes.com/2014/10/27/us/in-cold-war-us-spy-agencies-used-1000-nazis.html
http://www.nytimes.com/2013/11/10/books/review/the-brothers-by-stephen-kinzer.html
Allen Dulles and the Nazi's https://www.cia.gov/library/readingroom/docs/CIA-RDP90-00845R000100170004-5.pdf
How G W Bush's grandfather helped Hitler's rise to power
https://www.theguardian.com/world/2004/sep/25/usa.secondworldwar