Board Thread:General Discussion/@comment-5576236-20140215022241/@comment-8986886-20140621232424

TheKeyBladeLink wrote: That means only L, M, and N are unknown. These 3 letters being right next to each other in the Alphabet could mean they are yet another team of SR like the BambiBrigade.

The three missing Sternritter are probably the Quincy corpses who Yamamoto reanimated, when he used Zanka no Tachi South against Royd in ch.509. Royd recognized them as Zeidritz, Algora, and Hubert, and since Yamamoto wasn't the type who killed foot-soldiers, I believe they were Sternritter.