Major Sir William Newenham Montague Orpen, KBE, RA, RHA 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. During World War I, he was the most prolific of the official war artists sent by Britain to the Western Front. There he produced drawings and paintings of ordinary soldiers, dead men, and German prisoners of war, as well as portraits of generals and politicians. Most of these works, 138 in all, he donated to the British government; they are now in the collection of the Imperial War Museum. His connections to the senior ranks of the British Army allowed him to stay in France longer than any of the other official war artists, and although he was made a Knight Commander of the Order of the British Empire in the 1918 Birthday Honours, and also elected a member of the Royal Academy of Arts, his determination to serve as a war artist cost him both his health and his social standing in Britain. After his early death a number of critics, including other artists, were loudly dismissive of his work, and for many years his paintings were rarely exhibited, a situation that only began to change in the 1980s. Born in Stillorgan, County Dublin, William Orpen was the fourth and youngest son of Arthur Herbert Orpen (1830–1926), a solicitor, and his wife, Anne Caulfield (1834–1912), the eldest daughter of the Right Rev. Charles Caulfield (1804–1862), the Bishop of Nassau. Both his parents were amateur painters, and his eldest brother, Richard Caulfield Orpen, became a notable architect. His nieces were Bea Orpen and Kathleen Delap. The historian Goddard Henry Orpen was his second cousin. The family lived at ‘Oriel’, a large house with extensive grounds containing stables and a tennis court. Orpen appears to have had a happy childhood there. Orpen was a naturally talented painter, and six weeks before his thirteenth birthday was enrolled at the Dublin Metropolitan School of Art. During his six years at the college, he won every major prize there, plus the British Isles gold medal for life drawing, before leaving to study at the Slade School of Art between 1897 and 1899. At the Slade he mastered oil painting and began to experiment with different painting techniques and effects. Orpen would include mirrors in his pictures to create images within images, add false frames and collages around his subjects, and often make pictorial references to works by other artists in his own paintings. His two-metre-wide painting The Play Scene from Hamlet won the Slade composition prize in 1899. His teachers at the Slade included Henry Tonks, Philip Wilson Steer and Frederick Brown, all of whom were members of the New English Art Club; they ensured he exhibited there in 1899, and that he became a member in 1900. Orpen’s The Mirror, shown at the NEAC in 1900, references both Jan van Eyck’s Arnolfini Portrait of 1434 and also elements of seventeenth-century Dutch interiors, such as muted tones and deep shadows. Orpen depicted the ‘Arnolfini’ convex glass in several other paintings, including A Mere Fracture in 1901, during this period. Also in 1901, he held a solo exhibition at the Carfax Gallery in central London. Whilst at the Slade, he became engaged to Emily Scobel, a model and the subject of The Mirror. She ended their relationship in 1901, and Orpen married Grace Knewstub, the sister-in-law of Sir William Rothenstein. Orpen and Knewstub had three daughters together, but the marriage was not a happy one; by 1908, Orpen had begun a long-running affair with Mrs Evelyn Saint-George, a well-connected American millionairess based in London, with whom he also had a child.After he left the Slade, from 1903 to 1907, Orpen ran a private teaching studio, the Chelsea Art School, at Rossetti Mansions near the King’s Road with his fellow Slade graduate Augustus John. Between 1902 and 1915, Orpen divided his time between London and Dublin. He taught at the Dublin Metropolitan School of Art, and his teaching influenced a generation of young Irish artists. His pupils included Seán Keating, Grace Gifford, Patrick Tuohy, Leo Whelan and Margaret Clarke. This was the period of the Celtic revival in Ireland and, responding to the growth of new literary and other cultural developments, Orpen painted three large allegorical paintings: Sowing New Seed, The Western Wedding and The Holy Well. A key figure in the Celtic Revival was Hugh Lane, who was a friend and mentor to Orpen, and who begin collecting impressionist art works with Orpen’s guidance. In the summer of 1904 Orpen and Lane visited Paris and Madrid together, and some years later Lane commissioned a series of portraits of contemporary Irish figures from Orpen for the Municipal Gallery of Modern Art in Dublin. From 1908 onwards, Orpen exhibited works in the Royal Academy on a regular basis. Between 1908 and 1912, Orpen and his family spent the summer on the coast at Howth, north of Dublin, where he began painting in the open air and developed a distinctive plein-air style that featured figures composed of touches of colour without a drawn outline. The most notable of these works was Midday on the Beach, shown at the NEAC in 1910. Between 1911 and 1913, in London, Orpen painted a series of portraits, mostly three-quarter-length, of Vera Brewster, the wife of the writer Joe Horne. These included the paintings The Roscommon Dragoon, The Irish Volunteer and The Angler. John Singer Sargent promoted Orpen’s work and he soon built a lucrative reputation, in both London and Dublin, for painting society portraits. Mrs St. George, (1912), and Lady Rocksavage (1913), both demonstrate Orpen’s ability to produce the swagger portraits that Edwardian high society greatly valued. Group portraits of a type known as conversation pieces were also hugely popular and Orpen painted several, most notably The Cafe Royal in London (1912), and Homage to Manet (1909), which showed Walter Sickert and several other artists and critics seated in front of Édouard Manet’s Portrait of Eva Gonzalies. Orpen had worked on Homage to Manet since 1906 at his studio in South Bolton Gardens in Chelsea, where Lane also had rooms. By the start of World War I, Orpen was the most famous and most commercially successful artist working in Britain. At the start of World War One, a number of Irish people living in England returned to Ireland to avoid conscription. Among them was Orpen’s studio assistant and former pupil, Seán Keating. Keating encouraged Orpen to do likewise, but he refused and committed himself to supporting the British war effort. In December 1915 Orpen was commissioned into the Army Service Corps and reported for clerical duty at London’s Kensington Barracks in March 1916. Throughout 1916 Orpen continued painting portraits, most notably one of a despondent Winston Churchill, but soon started using both his own contacts and those of Evelyn Saint-George, to secure a war artist posting. Orpen knew both Philip Sassoon, the private secretary to Sir Douglas Haig, and also Sir John Cowans, the Quartermaster General of the British Army. In January 1917, the Daily Mirror reported that Haig himself had “conferred” on Orpen the title of an official artist with the British Army in France. The Department of Information, who were actually running the British war artist scheme, were given little choice but to accept the situation. While the other artists on the Department scheme remained at the honorary rank of second lieutenant and were restricted to three weeks visiting the Western Front, Orpen was promoted to major and given indefinite permission to remain at the Front. An officer from Kensington Barracks was appointed as his military aide, a car and driver were made available in France and Orpen paid for a batman and assistant to accompany him. In April 1917, Orpen travelled to the Somme and based himself in Amiens. Orpen had arrived on the Somme three weeks after the German forces had pulled back to the Hindenburg Line. Each day Orpen would be driven to locations such as Thiepval, Beaumont-Hamel or Ovillers-la-Boisselle to sketch Allied troops or German prisoners and record the devastation left by the Battle of the Somme amid the frozen and desolate landscape. However he did not submit any work to the Department of Information nor to the military censor. When he was reprimanded for that, he had Haig’s office move the officer who had issued the reprimand to other duties. In May 1917, he painted portraits of both Haig and Sir Hugh Trenchard, the commander of the Royal Flying Corps, and both of these images were widely reproduced in British newspapers and magazines. In June Orpen moved to the Ypres Salient and stayed at Cassel in the Hotel Sauvage, where he painted the self-portrait known as Ready to Start.