As for Halloween: I do not begrudge the fun everybody has on Halloween to anybody. If I was a kid I would probably have fun, too. However, I'm not catholic so I would not even celebrate "Allhallows", and since I'm neither Irish nor American I have no reason to celebrate Halloween, either. And I find no connections between the funny and spooky things that are the core of (modern) Halloween with the catholic red letter day. The spooky aspects are more related to the Celtic origin of this day which can certainly be considered pagan.
About only 5 years ago kids would not do the trick-or-treat thing in Germany because they didn't even know that Halloween existed. Meanwhile the advertising industry needed something new and found Halloween. Now kids here are carving pumkinheads and try to trick-or-treat, too, but they don't even know exactly what they are doing, and the older people who get tricked-or-treated don't know, either.
The whole Halloween-thing seems artificial and unreflecting to me, at least over here where it has null (zero) tradition. It's just another reason to have a party.
So I rather stay with Reformation Day, in that case I know the origins and its meaning. And I certainly had fun, too :-)
Charles V. was from the Habsburg dynasty, right. Like all emperors between 1452 and 1806.
The wallpiece behind the throne is made with many plates rotated 90°.
The background for the devil picture I gave exactly one year ago here: http://news.lugnet.com/castle/?n=18378
That was slightly more related to Halloween because of the presence of Old Nick...
This is just the sort of nonsense up with which I will not put.