We can't really answer your question because we don't know WHAT it is about German Government bonds you want to know. Furthermore, most of the information about such bonds are published in the German language. Is that the language you are fluent in? In the meantime try this article:

http://www.allenovery.com/SiteCollection...

(First,sorry for my poor English.I'm still learning person.)

I'm now searching information about german government bond holder from Bundesbank's hp(http://www.bundesbank.de/Navigation/EN/Statistics/statistics.html?nsc=true).

But for my poor English knowledge, I can not find what I want to know.

Could you tell me where is the information?

Thank you.