User blog comment:Xilinoc/Ch. 611 - The Soul King Dies (edgy as ever, Kubo)/@comment-2211792-20141226141529/@comment-24384892-20141226185003

You know what would be interesting? If it turns out that BG9 wasn't the real Sternritter K all along and the real Sternritter K is actually Shaz Domino (you probably still remember him) and BG9 was created by Shaz. Kinda like how Gremmy created Guenael.

This is actually one of the theories regarding Shaz and his mysterious, unknown letter.