you just said they were!
Discussion
The Germani is the name of a tribe, apparently. It comes from a different language and was integrated by Julius Caesar.
well, there you go
did you know there was a tribe of germans on the east of what is the modern borders called "sorb" and the history of this is very obscured but supposedly someone of this tribe got a grant of property in what is now modern former yugoslavia
i forget what other interesting things there were related to this but having spent a lot of time in serbia i can confirm that serbians are very german, except with bad tempers