Kate Middleton puts a lot of thought into her royal tour wardrobes, always mixing some of the best British designers with local brands from the countries she visits.

But it seems like the Duchess of Cambridge's eagerness to nod to the cultural importance of the places she visits goes beyond just the label.

On the Duke and Duchess' recent tour to Poland and Germany, Kate was snapped wearing a variety of colourful and, even daring, dresses.

But there was one that had a secret meaning that we didn't notice until now (thanks to Marie Claire for pointing it out).

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When Kate wore this printed Markus Lupfer dress on her final day in Berlin, she wasn't only championing a German designer. If you look closely, you'll see that the bottle green dress features illustrations of birds. Eagles, in particular.

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In case you weren't clued up on your 'significant birds from around the world' knowledge, the eagle is the national bird of Germany and Kate wearing the dress probably her way of honouring the country.

Sweet, huh?

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The dress rounded off a successful tour in sartorial terms for the Duchess, with fans happy to see her in a new pair of heels (Prada, in fact) and experimenting with different necklines.

From: Cosmopolitan UK