Ren Bastache... the bastard. Fitting name
I can't take his name seriously it's like a meaning for bastard mustache. i can't.
It is ultimately derived from Basque bazter ("border", "edge") and eche ("house"). So someone who lives by a boundry... but yeah sure go with bastard but I believe eh will actually help her in the end since the both hate the count.
Ren Bastache... the bastard. Fitting name