Of Smithson, as of his predecessors in his calling, very little is actually known. He seems to have belonged to a family of architectural designers, the members of which have been rather confused by Walpole and other writers who have referred to them. The facts seem to be that of his parentage there are no records, although chronology would admit of Robert Smithson, of Wollaton, being his father; his own name was John, he had a son named Huntingdon, a grandson named John and a great-grandson named Huntingdon. He himself died in 1634, and his son Huntingdon in 1648. They were both buried at Bolsover, in Derbyshire, and an inscription over the grave of the son speaks of his “skill in architecture.” The two have been confused with each other, but their separate identity has recently been made clear.[3] According to Walpole, in his “Anecdotes of Painting,” “John Smithson was an architect in the service of the Earls of Newcastle. He built part of Welbeck in 1604, the riding-house there in 1623,[4] and the stables in 1625; and when William Cavendish, Earl and afterwards Duke of Newcastle, proposed to repair and make great additions to Bolsover Castle, Smithson, it is said, was sent to Italy to collect designs. From them I suppose it was that the noble apartment erected by that duke, and lately pulled down, was completed, Smithson dying in 1648.[5] Many of Smithson’s drawings were purchased by the late Lord Byron from his descendants who lived in Bolsover.” On Lord Byron’s death the drawings were purchased by the Rev. D’Ewes Coke, and they are now in the possession of his descendants at Brookhill Hall. Many of the drawings have no title or other means of identifying them; but such as have go to show that Smithson, who, it would seem, was not only buried but also lived at Bolsover on the north-east border of Derbyshire, had a considerable local practice, as well as a certain amount of work in London. The riding-house and stables at Welbeck, mentioned by Walpole, are both in the collection, and there are also several drawings relating to Bolsover Castle. The buildings which go to make the “castle” may be divided into three groups: First, there is the castellated portion, built on the site of the old keep and begun in 1613: this part is still in good repair. Then there is a long range on the terrace--the “noble apartment” mentioned by Walpole. This was built by Sir William Cavendish, afterwards Duke of Newcastle, who presumably found the older building too small. Its principal apartment was a magnificent gallery, but, so far as its ruinous state permits the other rooms to be made out (and among them was a kitchen), it would appear to have been a completely equipped residence. On the view of the castle which adorns the Duke of Newcastle’s book on Horsemanship, this building is called “La Gallerie.” The third group comprises the riding-house and its adjuncts, which adjoin the gallery at its western end.