Ron and Hermione's children

[Igrainna at webtv.net]

No: HPFGUIDX 173867

Hello! New here and loving it...

I haven't seen this mentioned but I was wondering if anyone knew the
origins of the names of Ron and Hermione's children: Rose and Hugo? I
could understand the Potter kids (Albus, James and Lily) but I have yet
to find any reference in the Granger or Weasley family lines to "Rose"
and "Hugo".

Any thoughts?

Thanks,
Grainne