Proudinsky is also linebred(?), *hope thats the word* to the mare Kaiserwürde xx. The daughter line of 5-h through Kaiserwürde xx produced: Kreuzritter xx, Konigsstuhl xx, Kronenkranich xx, and Kronprinz xx.
Neat find! I think Windwurf shows up in sporthorse pedigrees too?
Plus he raced till 8 on all kinds of surfaces. http://rsracehorses.com/stallions.html
(edited--the surface he seemed to love was turf-- but he seemd to be able to travel all over to different tracks and win.)