David Douglas, 12th Marquess of Queensberry

David Douglas, 12th Marquess of Queensberry, 96, died on July 22, 2026. David Douglas, 12th Marquess of Queensberry was known publicly as a British aristocrat and pottery designer. David Harrington Angus Douglas, 12th Marquess of Queensberry (19 December 1929 – 22 July 2026) was an Anglo-Scottish aristocrat and pottery designer. He was the elder son of Francis Douglas, 11th Marquess of Queensberry, and his only son by his second wife, artist Cathleen Sabine Mann (married 1926 – divorced 1946). His maternal grandparents were an interior decorator, Dolly Mann (née Florence Sabine-Pasley) and artist Harrington Mann. Public biographical listings identify Queensberry as a British aristocrat and pottery designer. This public record remains centered on Queensberry's work as a British aristocrat and pottery designer and the documented milestones of that career.