Major Sir William Newenham Montague Orpen, KBE, RA, RHA (27 November 1878 – 29 September 1931) was an Irish portrait painter. He studied art at the Metropolitan School and at the Slade School in London where, at the time, great emphasis was put on the study of old masters. Orpen was a highly sought after society portraitist in his day.[1] Born in Stillorgan, County Dublin, William Newenham Montague Orpen was a fine draughtsman and a popular painter of the well-to-do in the period leading up to World War I. He was also involved in the Celtic revival in his native Ireland and he took part in the attempt there to find a visual counterpart to the birth of new national literary language (McConkey 2005). Although his studio was in London, he spent time in Ireland painting, he was a friend of Hugh Lane and influenced the Irish realist painters, like Sean Keating, who were beginning their careers at that time. Orpen's wife was Grace Newstub, whom he married in 1901 and with whom he had three daughters. The marriage was not happy, and the painter eventually ran off with one of his sitters, Madame Saint-George, a wealthy young married woman whom he painted around 1912. Like Sir John Lavery, William Orpen was made an official war painter of the First World War and in 1917 he travelled to the Western Front. He produced drawings and paintings of privates, dead soldiers and German prisoners of war along with official portraits of generals and politicians. Most of these works, 138 in all, are in the collection of the Imperial War Museum in London. For his war work, he was made a Knight Commander of the Order of the British Empire (KBE) in the 1918 King's birthday honours list.[2] He was elected a Royal Academician (member of the Royal Academy of Arts) in 1919.[3] He was deeply affected by the suffering he witnessed in the war and his 'To the Unknown British Soldier Killed in France first exhibited in 1923 showed a flag draped coffin flanked by a pair of ghostly and wretched soldiers clothed only in tattered blankets. Although widely admired by the public, this picture was attacked by the press and Orpen painted out the soldiers before the painting was accepted by the Imperial War Museum in 1927. According to Bruce Arnold, writing in Irish Art a Concise History: The same author notes Orpen's interest in self-portraits and his self-portraits are often searching and dramatic. In his The Dead Ptarmigan -a self-portrait in the National Gallery of Ireland he scowls from the frame while holding a dead ptarmigan at head height. In a review of an Orpen exhibition at the Imperial War Museum in London in 2005, Kenneth McConkey attributes this shallowness of Orpen's portraits to an emotional exhaustion, a result of what he witnessed as a painter of war. He writes of Orpen's post-war activity: William Orpen died, aged 53, in London, England, and was buried at Putney Vale Cemetery. A stone tablet in the Island of Ireland Peace Park Memorial, Messines, Belgium, remembers him.