| Title: | William Henry Cavendish Bentinck, 3rd Duke Of Portland |
| Dated: | c. 1774 |
| Medium: | oil on canvas |
| Dimensions: | overall: 76.3 x 63.2 cm (30 1/16 x 24 7/8 in.) framed: 99.7 x 87 x 2.9 cm (39 1/4 x 34 1/4 x 1 1/8 in.) |
| Location: | National Gallery of Art |
| City, State: | Washington, D.C. |
 Credit Line: |
Gift of Clarence Van Dyke Tiers |
