Not really, for most of history its important to remember that there wasn't a notion of nationalism. Thus a Brit and a German wouldn't feel intrinsically connected by virtue of their Germanic origins. In fact, a Bavarian and a Westphalian, both modern day Germans, would feel the same animosity towards eachother that either would feel towards a Spaniard. People weren't linked by linguistics or ethnicity, but by their rulers, and, importantly, their religion.

Certainly in the late 16th century there was an enormous gulf between the German people, in that religion had split them in half and so a Prussian and a Baden-ian (?) wouldn't feel any connection whatsoever.

Of course, eventually nationalism came into its own in the 1800s but by then Britain had started to implement Pax Britannica and Splendid Isolationism and so considered themselves wholly separate from the continent, an idea which has stuck since and thus ending any chance of union and solidarity between the Germanic peoples.

Also, remember that almost no countries have felt genuinely united by their shared linguistic group. Spain and France feuded for years despite being romance speakers, and the Russians were more than happy to carve up the poles despite both being slavs.

So, tl;dr - no. Nationalism is too new a thing.