I can be corrected if wrong, but the explanation I've read with regards to the law in France at least is that it was implemented not specifically to...
Again, not denying that, but most of those dynasties were not the 'superpower' of the world like you claimed, but some were regional powers of course...
While there are a few YDNA lines that likely trace back to the British Isles (mine included, which might to be from Cornwall, but they are to my best...
"Russian Poland" typically denotes Congress Poland. https://en.wikipedia.org/wiki/Congress_Poland. What's interesting is that it came to exist after...