User blog:PcRetro/So are Sternritter Human or not?

Okay, so as we all know, Quincy are Human. Now all Quincy are dead excepted Ryūken and Uryū, who are Human. So now we see the Sternritter, who have not be confrimed Human, so does anything they are or aren't? Also, what is up with BG9? He is a robot (we can assume), so even if the sternritter use to be Human, how is he a Quincy if he isn't alive?