We are frequent visitors to Europe, especially France, and this was one of the most picturesque hotels we've stayed at. It was built in 1212 and situated on limestone cliffs overlooking the Lot River Valley.
My wife, our two kids (4 and 6 yrs at the time) and I stayed at Château de Mercuès in July 2003. We were taking a road trip from Paris to Barcelona, via Carcassonne, and this was our second stop (the previous night was at La Chapelle St-Martin near Limoges).
Our suite had a living room, bedroom with a double bed, and bathroom with bath (no shower). The room overlooked the Lot Valley. Unfortunately we were travelling during the great heat wave of 2003, and this hotel, like many ancient châteaux, lacked air conditioning. It was at least 40 degrees Celsius (104 degrees Fahrenheit) and opening the windows was of marginal value, but at least it allowed the exchange of fresh air. Fortunately, there was a pool, which was a great way to get temporary relief from the heat.
We arrived on a Sunday afternoon and were informed the restaurant was closed. I don't recall if that was because the kitchen was routinely closed on Sundays, or if it was due to renovations or other extraordinary reasons. In any case, we had to go to Cahors to find fast-food to bring back for dinner. (Our kids were too tired to go to a restaurant and anyways it would have been a challenge to find a kid-friendly one open on Sunday night.) Fortunately I found a McDonald's, which provided just what we needed to get through the night.
We had breakfast the following morning in the room, which was excellent.