William Cavendish-Bentinck, 6th Duke of Portland - Wikipedia
Legends & The 5th Duke
The Dead Duke, his Secret Wife, and the Missing Corpse | The Druce-Portland Peerage Romance | Welbeck | Notts Places | Our Nottinghamshire
History's Nutcases: The Prince of Silence
John Bentinck, 5th Duke of Portland: Excavator, Eccentric & Recluse
Architecture | Free Full-Text | UNDERGROUND WELBECK: INTAGIBLE SPACES John Cavendish-Scott-Bentinck, 5th Duke of Portland (1800–1879)
The Disappearing Duke: The Intriguing Tale of an Eccentric English Family - The Story of the Mysterious 5th Duke of Portland - Freeman-Keel, Tom; Crofts, Andrew: 9780952691228 - AbeBooks
At home with the Duke of Portland | Strange Flowers
At home with the Duke of Portland | Strange Flowers
Welbeck Abbey
The 5th Duke of Portland // Tunnel Vision | Event in Bassetlaw District
John Bentinck, 5th Duke of Portland - Wikipedia
Nottinghamshire history > Articles > Country homes: Welbeck Abbey. The seat of the Duke of Portland (1906)
Possibly William John Cavendish Cavendish-Scott-Bentinck, 5th Duke of Portland (1800-1878) 1252899 | National Trust Collections
William Henry Cavendish Bentinck, Duke of Portland, and Lord Edward Bentinck | Works of Art | RA Collection | Royal Academy of Arts
The Harley Foundation on Twitter: "On this day in 1800 William John Cavendish Cavendish-Scott-Bentinck, later the 5th Duke of Portland 5th Duke of Portland was born. https://t.co/sh6K3dRxcB" / Twitter
The Best Eccentric Aristocrats Are British, Obviously
How An Introverted Duke Pimped Out His House To Avoid Humans | by K. Thor Jensen | OMGFacts | Medium
William Cavendish-Bentinck, 6th Duke of Portland | Military Wiki | Fandom
The Duke Who Loved Tunnels So Much He Was Immortalized As A Literary Badger - Atlas Obscura
Biography of William Henry Cavendish Cavendish-Bentinck, 3rd Duke of Portland (1738-1809) - The University of Nottingham
The 5th Duke of Portland - Tunnel Vision - Visit Nottinghamshire
Nottinghamshire history > The Portland Peerage Romance (1907)
The Eccentricities of The 5th Duke of Portland | Nottinghamshire, Maine house, Roof structure
