According to the Creation Kit, Hod is apparently listed as Ralof's uncle. What?
Ralof is Gerdur's sister, and Gerdur is his wife. So did Hod marry his niece?
This strangely seems more plausible than the whole Black-Briar family shenanigans, so I really can't know if this is a mistake or not.
I mean, it's a small village...