The Knights Teutonic are a Space Marine Chapter, officially, but otherwise they act as an entirely separate faction.
Indeed it is true, all Chapters operate distantly from the boundaries of the Imperial Creed, but the Knights Teutonic have so blatant a disregard for every standard, even those of the Codex Astartes, that they are looked upon with fear and mistrust by the sectors of space which have the misfortune to host them for any period of time.
THE KNIGHT TEUTONIC
The Knights Teutonic place quality above all else, and quantity suffers the most as a result. At any time, there is only a mere 500 members of the Knight-Order, or as the Chapter is referred to. This severe limitation on manpower was a decision made by the Primarch of the Chapter, the legendary Grand Master Kaiser von Salen. Since then, it has been rigorously maintained.
A member of the Knights Teutonic is commonly referred to as Knight-Brother. The Chapters members retain the honorific Brot