This bloodline traces back the sires to what have been identified as the 3 foundation lines of the German Shepherd. Mutz von der Pelztierfame, Quanto von der Wienerau and Canto von der Wienerau.
The bloodlines may not be complete either because no information is available or the data has not yet been completed. 

Sire Bloodlines for
Celt vom Haus Bergblick
 
Finn vom Metterursprung
Zender vom Lusondai
Udo v.'t Quentawald
Qinto von Haus Nuyens