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
Yelena di Fossombrone
 
Timo vom Berrekasten
Wanko vom Lippischen Norden
Quanto de Coroninas
Enzo von der Burg Aliso
Quando von Arminius
Xaver von Arminius
Lasso di Val Sole