John Jeffreys Pratt (1759–1840), 2nd Earl and 1st Marquis Camden

Thomas Lawrence's portrait of John Jeffreys Pratt, 2nd Earl and 1st Marquess Camden of 1802 depicts the Viceroy of Ireland during the 1798 rebellion and subsequent Act of Union — one of the most controversial periods in Anglo-Irish history. Camden's administration had faced the United Irish rebellion with severe repression, and the subsequent Union that dissolved the Irish Parliament was one of the most consequential political acts of the period. Lawrence's portrait presents him with official dignity, the political controversy of his viceroyalty subordinated to the conventions of aristocratic portraiture.

Lawrence renders the Marquess with the composed authority of a man tested by grave public responsibilities. The portrait balances personal warmth with the formality expected of a major political figure, the dark costume and direct gaze conveying both gravitas and human accessibility.