Castle writing

I am in Heerlen in the Netherlands for a couple of days, for a writing session for an EU project I'm working on. It is in a castle turned into a hotel. Flew to Amsterdam, and got the train down, it's quite lovely and had a nice meal with the other partners, which ended with a 1000 day old cheese. Tangy!
It is almost impossible for anyone from Britain of a certain age to see a European castle and not think "escape from Colditz". Fact.