Has anyone stayed at Chateau La Veneria in Valtice? I've sent them a couple of emails looking for a reservation but they haven't replied.
probably closed for the winter
I doubt they would be closed. Try to call them. From US or Canada: 011 420 737 684 308.
I agree. There's nothing on their website about being closed and nothing in Rick's guidebook about that. Also it wouldn't make sense not to respond to reservation requests for the summer even if they were closed now. I'll try calling if I don't hear back in a day or two.