My Name is Gunter Eisenach. I Am the son of Klaus Eisenach born in Knigsberg (now Russian). His father was called Franz.

That wouldn't be franz eisenach the german pilot who shot down 129 russian planes on the eastern front in WW2, and was awarded the knights cross would it? sean leeman cpt, fa

p.s. my g,g,g gf was Albert Eisenach from Burscheid. He was a graduate of the university of heidelberg, and former officer in the german army before 1865. Hope this helps some. Sean L.