https://www.mackins.co.uk/artwork-photography-pictures.php?photoimage=6279
Duke of Portland Boathouse Ullswater - Herdy Artwork & Photography ~ Herdwick Sheep Art Canvas and...
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https://oddlet.com/lovable-weirdos/the-duke-who-went-underground
5th Duke of Portland: The Reclusive Duke Who Built Miles of Tunnels | Oddlet
Mar 19, 2026 - He dug fifteen miles of tunnels beneath his estate, furnished them with a 250-foot library and a ballroom for ten thousand square feet, and never invited...
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