Wendy is linebred on some really old DDR blood. 4,5 -5,5 on V Ingo von Rudingen SchH3 Kkl 1. 

This information below was found on Pedigree Database about Ingo:

Ingo vom Rudingen was an outstanding producer of East German Border Patrol dogs and his name can be found in the pedigrees of many present day working shepherds through his progeny Held v. Ritterberg, Jeff v. Flämings-Sand, Xanto v.d. Gundorfer Höhe, Viktor v.d. Edelquelle & Robby v. Glockeneck. Ingo vastly improved pigmentation and working abilities within the German Shepherd Breed as a whole and produced many fine working shepherds

Kör: Medium-size, medium-strong male with a good head and expression. Very good top-line, harmonious and pleasing outline with good bone and muscular system. The appearance is determined by good structural proportions, firmness, pronounced pigmentation, correct stand and angulation of the limbs. While trotting he covers ground well, shows good tension and balance. His type is outstanding. Sound and balanced temperament with sufficient sharpness, hardness and courage.

V 3 - DDR-Siegerausstellung 1977
V 3 - DDR-Siegerausstellung 1978
V 4 - DDR-Siegerausstellung 1979

Wendy is also linebred 4-5 Hondo vom Haus Welsh SchH 3 (V-DDR-MS) FH3 Kkl1

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& 4-5 Conny vom Kemmlerblick SchH1 Kkl1  all great DDR working lines. Wendy's sire is SG Alf von Osterburg Quell SchH 3 Kkl 2 and grandsire is SG Lord vom Gleisdreieck SchH 3 FH3 (V-DDR-MS) Kkl 1.

 Wendy's dam is Gitti vom Sandokan (Ost) SchH 1 HD/A-Normal (a1) from the same kennel she was produced at. Sandokan has been breeding German Shepherds for 25 years in Germany. To see the website that produced Wendy click here, You will also see several pups produced from Wendy on this website.