User blog comment:B214/Volume 23 discussion blog/@comment-26293136-20170531211025/@comment-30924344-20170531230937

Yes the original Siegfried. The Hero Faction Siegfried wasn't the original.

Sigurd Institution were trying to create the "true descendant of Sigurd" who can use Gram by gathering those who carries his blood [he didn't have any children so his siblings/cousins etc]]. In order for these artificial humans to be able to even attempt to wield Gram, they had to get much stronger and so were sent to warrior institutions.