And Karl Der Grosse is regarded with great reverence as a German. Later, the kingdom split into two.
I think it also worth noting that one of the reasons Germany fought France in WWI was over lands held by France that were occupied by German-speaking peoples. Specifically the Loire Region, west of the Rhine. Thus, one might argue that the Frankish Kingdom was more a part of Germany, even in what is now France, than it ever was France.
Honestly, as an American of German ancestry, I have long wondered what gene pool mixed into the French character that made the French such wooses.
Maybe it was the snails they ate.
Taken from Charlemagne the King:
An biography from Will Durant's
STORY OF CIVILIZATION
1950