Earlier Houses: Near the house are the ruins of Medieval, Grade I-listed Barnwell Castle, which was abandoned when the Montagu family moved into the new Barnwell Manor.

House & Family History: The Barnwell Estate was granted to the Montagu family in 1540 by King Henry VIII; the Montagus remained seated here until 1913. In 1938 Prince Henry, Duke of Gloucester, the third son of King George V, purchased Barnwell. In January of 1995 Prince Richard, Duke of Gloucester, son of Prince Henry, let the house for seven years to Berenger Antiques (he continued to manage the larger estate). As of 2022, the house is occupied by Windsor House Antiques.

Collections: Sotheby's sold the contents in 2002.

Garden & Outbuildings: The Duke of Gloucester farms the 2,500-acre Barnwell Estate.

Country Life: CXXVI, 238, 298, 1959.

House Listed: Grade II

Park Listed: Grade II

Past Seat / Home of: SEATED AT EARLIER HOUSE: Berengar le Moyne, 13th century. Edward Montagu, 1st Baron Montagu of Boughton, 16th century. SEATED AT CURRENT HOUSE: William Henry Walter Montagu-Douglas-Scott, 6th Duke of Buccleuch and 8th Duke of Queensberry, early 20th century; Montagu family here from 1540 until 1913. Horace Czarnikov, early 20th century. MacGarth family, 1930s. Prince Henry William Frederick Albert Windsor, Duke of Gloucester, 1938-74.

Current Ownership Type: Individual / Family Trust

Primary Current Ownership Use: Other

Ownership Details: Let to Windsor House Antiques as a shop and auction venue

House Open to Public: Yes

Phone: 01832-274-595

Website: https://www.windsorhouseantiques.co.uk/

Historic Houses Member: No