Sirius ( paddles ) is probably the only one who would have much to do with Lucius, and that's mostly snarking. He doesn't exactly think much of him and I'm sure the feeling is mutual!
Caitlin Vance ( fieryvance ) comes from a fullblood, society family but she was never interested in that side of it so I can't imagine they'd have much to do with her.
Benjy Fenwick( fenwicky ) probably no real connection here either.