Kuroshitsuji chapter 132. It was fun to draw the conversation of the Phantomhive siblings. -Toboso
Come to speak of it, I was asked whether Frances isn’t blood-related (to Ciel) since she wasn’t mentioned in Ciel’s family tree that appeared (in the manga) a while ago, however, it was a family tree that featured “Ciel’s [direct] roots”, that’s why Frances, his aunt, wasn’t mentioned.[Vincent and Frances] are real siblings. -Toboso
There seem to be different versions of family trees, the big ones that show the [whole] lineage of the family, and the ones that only show one’s [direct] roots. But I think even if it were supposed to be a family tree with the whole lineage, Frances probably wouldn’t be shown in the family tree of the Phantomhives
since she married out of the family. There’s not much detailed material on this though, so it’s just my guess. -Toboso
The Phantomhive siblings, Vincent and Frances, share the same concept as the Midfords siblings, Edward and Lizzie, i.e. I draw them with the typical image of “girls take after their father, boys after their mother” in mind. So maybe Ciel’s grandfather looks like Edward :) -Toboso
Here’s the family tree Yana is talking about (ch103)
Breaking NEWS: Guys, Cedric *maybe* looks like Edward!!!