Major Sir William Newenham Montague Orpen, was an Irish artist who mainly worked in London. Orpen was a fine draughtsman and a popular, commercially successful painter of portraits for the well-to-do in Edwardian society, though many of his most striking paintings are self-portraits.

A war artist is an artist either commissioned by a government or publication, or self-motivated, to document first-hand experience of war in any form of illustrative or depictive record. War artists explore the visual and sensory dimensions of war, often absent in written histories or other accounts of warfare.