Are there Hefeweizen beers with coriander? White beer ("witbier" in Dutch) is a typical Dutch/Belgian thing, from research I found that it's wheat bear with flavours. This question is about the coriander flavour used in those beers.

The question is about the wheat bear siblings of white beer: Hefeweizen. Are there any hefeweizen that also are coriander-flavoured? To add a more subjective bonus question: are any of those commercially available?

I've tried Googling, this mainly seems to lead to brewing recipes or extremely localized experiments. I've assumed (perhaps incorrectly) most if not all German candidates would be bound by the Reinheitsgebot and as such will not contain coriander. Finally, I've checked some Dutch beers (e.g. "Grolsch Weizen") marketed as "weizen" and the listed ingredients, but so far no dice.

To reiterate the question: are there any hefeweizen beers with coriander commercially available?
Generally you won't find coriander or other spices added to hefeweizen beers, due to the traditional beer purity law.  However, one famous exception is Gose: http://www.germanbeerguide.co.uk/gose.html