The castle was a tourist attraction and newly restored - it only opened again for the public last year. It contained a museum as well - now probably mostly lost. It's a tragedy - and one that has been handled like all tragedies are handled in our age: it has been filmed.
So if you have always wondered what it looked like when a castle burned in the past - you can now watch and see. (There are plenty more videos on youtube about it, by the way.)
h/t to schmalenstroer's blog