Pride of the Prydes - location?

Was just watching it and had a flashback that I've stood on the steps of the country house portrayed as the central location for the story.

Then the gardens looked very familiar, too, as a female character was running through them.

I've been to so many of these properties that I just cannot recall which one this was!!

It's a National Trust property. Am trying now to find my NT guide book in a box to see if I can find it--just for curiosity purposes.

It's one of my favorite, less heralded properties (not like York castle or Berkeley Castle, etc.).

It was one of the most moving places, though, one of the mothers back in the Great War days created a kind of shrine to her lost sons in an upstairs bedroom, including a multi page recreation of a letter her son, a major who was assigned to field office duties as a dog's body for awhile, wrote to her husband, detailing why the war was such a waste and such a disaster.

Letters like that typically did not make it home, due to censorship from the front. But his made it through because he was in an office at the front where the leaders were. He was killed not long after.

Gosh I cannot remember the name of this property! Gah