>>458
ありがとう　これだね
http://harrypotter.wikia.com/wiki/Evans_sisters%27_father
http://www.accio-quote.org/articles/2005/0705-tlc_mugglenet-anelli-3.htm

MA: What about Harry's family ― his grandparents ― were they killed?
JKR: No. This takes us into more mundane territory.
As a writer, it was more interesting, plot-wise, if Harry was completely alone.
So I rather ruthlessly disposed of his entire family apart from Aunt Petunia.
I mean, James and Lily are massively important to the plot, of course, but the grandparents?
No. And, because I do like my backstory: Petunia and Lily's parents, normal Muggle death. James's parents were elderly,
were getting on a little when he was born, which explains the only child, very pampered,
had-him-late-in-life-so-he's-an-extra-treasure, as often happens, I think.
They were old in wizarding terms, and they died.
They succumbed to a wizarding illness. That's as far as it goes.
There's nothing serious or sinister about those deaths. I just needed them out of the way so I killed them.