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That would be somewhat hard. Take the Wikipedia article:
The Bergisches Land is a region in North Rhine-Westphalia in Germany. It contains beside the tri-city area of Remscheid-Solingen-Wuppertal...

Splitting hairs, that is simply wrong. If anything, it is a play on words with Berglöwe vs. Löwe aus dem Bergischen, aka mountain lion vs. lion from the Bergisches Land (see above).

So there. ;)

Just for the record, German umlauts used to be regular vowels with an e in old German script on top. More details here: Umlaut (diacritic) - Wikipedia, the free encyclopedia.

The Dutch have a...

That would be Berglöwe. And before any members of the local huntin' shootin' fishin' society start hopping on board their lear jets, let it be known that there are no mountain lions in Germany at all.

That certain area being Bergisches Land - Wikipedia, the free encyclopedia. ;)