John Campbell, 4th Duke of Argyll by Thomas Gainsborough
Gainsborough, T. (n.d.). John Campbell, 4th Duke of Argyll [Painting]. n.p.. https://www.artwiki.art/artworks/thomas-gainsborough/john-campbell-4th-duke-of-argyll
Gainsborough, Thomas. John Campbell, 4th Duke of Argyll. n.p.. Art History Wiki, https://www.artwiki.art/artworks/thomas-gainsborough/john-campbell-4th-duke-of-argyll. Accessed 2026-07-26.
Thomas Gainsborough, John Campbell, 4th Duke of Argyll, n.p., https://artwiki.art.
Gainsborough, T., n.d.. John Campbell, 4th Duke of Argyll. [Painting] n.p.. Available at: https://www.artwiki.art/artworks/thomas-gainsborough/john-campbell-4th-duke-of-argyll (Accessed: 2026-07-26).
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