First up was the Mahrs Weizenbock Anstich.
Surprisingly, it was served on draft (from a keg not a barrel) and I think it suffered from this. It was a bit too cold and it was a bit under carbonated compared to the bottled version. Still, it was good and fairly deadly. Supposedly 7.2% but they say that every year and every year I think it is a bit stronger than that.
It is a less smokey than the Märzen, sweeter and richer -- as you'd expect for a beer you drink while you were fasting for Lent -- more food value. It is also unfiltered as the yeast would also add food value.
A note to future visitors: Drink the Fastenbier first, then switch it the Märzen -- if you do it the other way around you will find the Fastenbier to be too sweet.
By now I was starting to feel my bug, so it was back to the room for a nap. I did surface enough to have dinner and a few beers downstairs.