One should ALWAYS check their references, right? :lol: Turns out 1040 is the supposed date of the founding of the brewery. Or Weihenstephan. Oh, well.
I'm guessing it's a lot simpler grain bill than most Maerzen recipes I see out there, mostly Pilsner and Munich, a bit of caramel. Given the location, I'm also guessing the hops are mostly either Hallertau or Tettnanger, given the more floral note in the beer I'd guess Hallertau. Looking at this image, I'd say next time I find myself in Germany, a pilgrimage is in order! Our local liquor store only has four of the beers in this image.