Streatlam Castle
Streatlam and Stainton, United Kingdom
Streatlam Castle was a Baroque English country house near the town of Barnard Castle in County Durham, that was demolished in 1959. Owned by the Bowes-Lyon family, Earls of Strathmore and Kinghorne, the house was one of their three principal seats, alongside Glamis Castle in Forfarshire, Scotland, and Gibside, near Gateshead. Streatlam incorporated some 1,190 acres (4.8 km2) of land, along with an estate consisting of some twenty farms. The last occupant was Lord Glamis, later the 15th Earl, although the estate was still owned at the time by his father, the 14th Earl, uncle to Queen Elizabeth II.
Country house data from Wikidata (CC0). Summary from Wikipedia (CC BY-SA).