Completed in 1691 by William Douglas, 1st Duke of Queensberry, Drumlanrig Castle is the home of the current Duke of Buccleuch & Queensberry.The 120,000 acre Queensberry Estate has at its heart the country park, open to the public (as is the castle) during the summer months. The woodlands, farmlands, lochs & rivers are home to a wide variety of wildlife, including red squirrels & otters. Well worth a visit.