Belgian artist Rene Magritte's biography is a key element of his art. His life is infused with bizarre moments: a surreal journey oscillating between fact and fiction that he always conducted as the straight-faced bowler-hatted man. The events of Magritte's childhood played an important part in creating the surrealist, but it was his popular culture borrowings from crime fiction, advertising and postcards that has made his work instantly recognizable. The often unreliable nature of Magritte's accounts of his own life have transformed his public image into a kind of fictional character rather than a 'real person'. He would shape his own life story to be its own surreal work of art.

Mercurial, saturnine, scandalous and unpredictable, Caravaggio - as a man, as a character and as an artist - holds dramatic appeal. He spent a large part of his life on the run, leaving a trail of illuminated chaos wherever he passed, most of it recorded in criminal justice records. When he did settle for long enough to paint, he produced works of staggering creativity and technical innovation. He was famous throughout Italy for his fulminating temper, but also for his radical and sensitive humanisation of biblical stories, and in particular his decision to include the brutal and dirty life of the street in his paintings. Caravaggio was a rebel and a violent man, but he eyed the world with deep empathy, realism and an unrelenting honesty.