Max Sinister:
“Note that I will use a limited butterfly effect in this TL: After a certain while there won't be i.e. the successors from OTL, but only "morphic twins" from the same dynasties. Not as in other TL’s where historical persons pop up even 1000 years after the POD (sorry, basileus).
OTOH, the POD won't immediately cause that all persons born will be different. That's why I said "limited butterfly effect" - after the POD it will take some years until the changes are outside Mongolia, several decades until they reach Europe and even centuries for Australia. (That's not how chaos theory works, but it's a bit easier for me.)”