The Irish-born British artist Francis Bacon (1909–1992) painted 28 known large triptychs between 1944 and 1985–86.
He followed the larger style for 30 years, although he painted a number of smaller scale triptychs of friend's heads, and after the death of his former lover George Dyer in 1971, the three acclaimed "Black Triptychs".
Bacon was a highly mannered artist and often became preoccupied with forms, themes, images and modes of expression that he would rework for sustained periods, often for six or seven-year periods.
When asked about his tendency for sequential or repetitive paintings, he explained how, in his mind, images revealed themselves "in series.
"[2] He told critics that his usual practice with triptychs was to begin with the left panel and work across.