![NPG Ax142316; Winifred Anna (née Dallas-Yorke), Duchess of Portland and an unknown woman - Portrait - National Portrait Gallery NPG Ax142316; Winifred Anna (née Dallas-Yorke), Duchess of Portland and an unknown woman - Portrait - National Portrait Gallery](https://collectionimages.npg.org.uk/large/mw91439/Winifred-Anna-ne-Dallas-Yorke-Duchess-of-Portland-and-an-unknown-woman.jpg)
NPG Ax142316; Winifred Anna (née Dallas-Yorke), Duchess of Portland and an unknown woman - Portrait - National Portrait Gallery
![William Henry Cavendish Bentinck, 3rd duke of Portland | prime minister of Great Britain | Britannica William Henry Cavendish Bentinck, 3rd duke of Portland | prime minister of Great Britain | Britannica](https://cdn.britannica.com/85/3585-004-40651517/detail-Portland-Joshua-Reynolds-engraving-John-Murphy.jpg?w=400&h=300&c=crop)
William Henry Cavendish Bentinck, 3rd duke of Portland | prime minister of Great Britain | Britannica
![NPG Ax142329; Winifred Anna (née Dallas-Yorke), Duchess of Portland - Portrait - National Portrait Gallery NPG Ax142329; Winifred Anna (née Dallas-Yorke), Duchess of Portland - Portrait - National Portrait Gallery](https://collectionimages.npg.org.uk/large/mw91452/Winifred-Anna-ne-Dallas-Yorke-Duchess-of-Portland.jpg)
NPG Ax142329; Winifred Anna (née Dallas-Yorke), Duchess of Portland - Portrait - National Portrait Gallery
![NPG Ax143915; Ivy Cavendish-Bentinck (née Gordon-Lennox), Duchess of Portland - Portrait - National Portrait Gallery NPG Ax143915; Ivy Cavendish-Bentinck (née Gordon-Lennox), Duchess of Portland - Portrait - National Portrait Gallery](https://collectionimages.npg.org.uk/large/mw119068/Ivy-Cavendish-Bentinck-ne-Gordon-Lennox-Duchess-of-Portland.jpg)
NPG Ax143915; Ivy Cavendish-Bentinck (née Gordon-Lennox), Duchess of Portland - Portrait - National Portrait Gallery
![Langwell House in Caithness, Scotland, Great Britain, the historic Scottish home of the Dukes of Portland Stock Photo - Alamy Langwell House in Caithness, Scotland, Great Britain, the historic Scottish home of the Dukes of Portland Stock Photo - Alamy](https://c8.alamy.com/comp/2A79T33/langwell-house-in-caithness-scotland-great-britain-the-historic-scottish-home-of-the-dukes-of-portland-2A79T33.jpg)
Langwell House in Caithness, Scotland, Great Britain, the historic Scottish home of the Dukes of Portland Stock Photo - Alamy
![The Duke's Candlesticks at Berriedale in Caithness, Scotland. Work for realignment of the A9 at the hairpin on the Berriedale Braes beyond Stock Photo - Alamy The Duke's Candlesticks at Berriedale in Caithness, Scotland. Work for realignment of the A9 at the hairpin on the Berriedale Braes beyond Stock Photo - Alamy](https://c8.alamy.com/comp/2D92R6N/the-dukes-candlesticks-at-berriedale-in-caithness-scotland-work-for-realignment-of-the-a9-at-the-hairpin-on-the-berriedale-braes-beyond-2D92R6N.jpg)