You're wrong, Henri. Absolutely, completely and utterly. The term "Kingdom of Germany" has existed since at least the eleventh century - a thousand years ago - and possibly earlier.
Bismarck did not, in fact, create Germany.
Oh, and from the Frederick Barbarossa article on Wiki also : He was elected King of Germany in Frankfurt on 4 March 1152
King of Germany. Frederick was King of Germany. Do you think that perhaps maybe that might qualify as a leader of the German civilization?