The r1 haplogroup is distinctly Aryan. You can be Aryan and not be Germanic.
Not really, the bloodline only became Germanic in the 19th centuries, however this occurred because Germans, Russians, and Brits had marriages between each other(as I've already said, all royal families were related by the late 1800s). So German royals had Slavic blood as well. Hmm, the German empire only became an entity by the 1800s...I wonder if Slavs were the reason...
Made up. In fact, they only became more and more German.