Artwork
William Henry Cavendish Bentinck, 3rd Duke of Portland

William Henry Cavendish Bentinck, 3rd Duke of Portland is an oil painting by the American Impressionist artist Matthew Pratt. It dates from 1774 and is held in the collection of the National Gallery of Art.
About this work
Technique & Style
No documented restoration or specific handling issues are recorded; the painting entered the National Gallery of Art through a series of family bequests.
The work is an oil portrait executed on canvas in 1774 by Matthew Pratt. The medium is oil paint applied to a stretched canvas support, typical of portraiture of the period. The composition follows conventional 18th‑century portrait conventions, rendering the sitter in a three‑quarter view with muted tonal modeling.
No documented restoration or specific handling issues are recorded; the painting entered the National Gallery of Art through a series of family bequests. Its formal qualities include a restrained palette, fine brushwork, and attention to the sitter’s attire and expression.
History & Provenance
Matthew Pratt executed this oil-on-canvas portrait of William Henry Cavendish Bentinck, the 3rd Duke of Portland, in 1774. The work remained within the artist's family lineage, passing from Pratt to his daughter, Mary Fennell. Upon Mary's death, ownership transferred to her unmarried daughter, Maria Fennell, who resided in Philadelphia until her death in 1880.
Although Maria's 1879 will did not explicitly list the portrait, she bequeathed her shared interest in family pictures to her niece, Rosalie Vallance Tiers Jackson. In 1915, Jackson gifted the painting to her nephew, Clarence Van Dyke Tiers, who held the work in Oakmont, Pennsylvania, and later Daytona Beach, Florida. Tiers subsequently donated the portrait to the National Gallery of Art in Washington, D.C., in 1942, where it entered the permanent collection.
The portrait is held by the National Gallery of Art, Washington, D.C. It entered the collection in 1942 as a gift from Clarence Van Dyke Tiers, having previously been owned by the artist’s descendants, Maria Fennell, and Rosalie Vallance Tiers Jackson. The painting carries the National Gallery of Art’s accession number 1942.9.1.
Overview
Matthew Pratt created this oil on canvas portrait around 1774, depicting William Henry Cavendish Bentinck, the 3rd Duke of Portland. The artwork serves as a formal representation of a prominent figure from the period, capturing his likeness and status through the traditional medium of oil painting.
Subject & Meaning
The painting features William Henry Cavendish Bentinck, who held the distinguished title of 3rd Duke of Portland. His elevated social standing is conveyed through the formal nature of the portrait, which was a common practice for commemorating individuals of significant influence and noble lineage in the 18th century.
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Artist & collection
Artist
Matthew Pratt left his Pennsylvania home in the 1760s and landed in London, where he walked into Benjamin West’s busy studio.
















