The Y-chromosome haplotype of the Tsar appears to belong to haplogroup R1b. Interestingly, they were able to get the Tsar's DNA from a bloodstained shirt:
In 1890–1891 Nicholas II, then-heir to the throne was on an around-the-world voyage. On 11 May 1891, during his visit to Osaka, Japan, he was attacked and injured in an apparent assassination attempt. The escort policemen swung at Nicholas II’s head with a saber; however the following blow was parried by Prince George of Greece and Denmark who was accompanying Nicholas II. Although the wound was not life-threatening, Nicholas II was severely bleeding and a long scar remained on the right side of his forehead.
dienekes.blogspot.com/2009/02/y-chromosome-of-tsar-nicholas-ii.html
Ser ut til at vårt kongehus er R1b

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