|Died||1845 (aged 67–68)|
Robertson created a new style of miniature portrait that became dominant by the middle of the nineteenth century; at least four examples are held in the Victoria and Albert Museum. He broke with previous styles, particularly the work of Richard Cosway, and was critical of these earlier painters, describing their works as 'pretty things but not pictures'. Robertson's style included larger and more detail paintings, usually rectangular, and with a use of paint trying to emulate large oils on canvas, adding more gum to the paint to give it a greater lustre and depth of colour.
- One or more of the preceding sentences incorporates text from a publication now in the public domain: Lee, Sidney, ed. (1896). "Robertson, Andrew". Dictionary of National Biography. Vol. 48. London: Smith, Elder & Co.
- "Andrew Robertson, 1777 - 1845. Miniature painter (Self-portrait)". National Portrait Gallery. Retrieved 9 November 2015.
- "A History of the Portrait Miniature". Victoria and Albert Museum. Retrieved 9 November 2015.
- Andrew Robertson (1810). "Portrait of Joseph Gwilt". National Portrait Gallery. Retrieved 26 January 2017.