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
Ecco v.d. weissen Bergen
 
Tocko von der Ostfriesischen Thingstätte
Randy des Loups
Gorbi von Bad-Boll
Enzo von der Burg Aliso
Quando von Arminius
Xaver von Arminius
Lasso di Val Sole