ID of a ribbon on a trashed medal bar?

[landsknechte]

Does anyone recognize the ribbon squished between the Austrian ribbon on the far right, and the blue and white one? I've got a couple of ribbon bars that sport a ribbon quite similar to that one (although te blue is closer to the blue of a Bavarian Long Service decoration), and I'm wondering if it might be any help in putting some sort of a context to my mystery ribbon.

--Chris