Harry's last 'living' relatives?

[potioncat]

No: HPFGUIDX 123832


Eggplant wrote:
Think about it, you have 2 parents 4 grandparents 8
> great-grandparents and so on, go back 15 or 20 generations, just a 
few hundred years, and everybody is related to everybody. In the 
small wizard community this would be even more true. Petunia may be 
his closest relative but I don't care what Dumbledore says, Harry has
> other living relatives, mathematics demands it.

Potioncat:
Yeah, go back and you can lots of ancestors and relatives...most of 
them dead. But at what point are you no longer related to the 
living? Is my great-great-great-grandfather's great-great-great-
great niece still my cousin? At some point you no longer share blood 
(DNA). And if you have a few generations of one child families it 
could happen pretty quick.