Today Calouste Gulbenkian is best known for the spectacular art collection and fortune which he bequeathed to the foundation he set up in Lisbon. When he died, in 1955, he was known as the richest man in the world, his wealth largely amassed from 5% deals with the Middle Eastern oil magnates. He was a moral yet ruthless businessman who demanded total obedience from his family despite, in his younger days, living a champagne and playboy lifestyle. Later a recluse, he appeared to care about little other than his art collection. Jonathan Conlin’s intriguing book reveals his extraordinary contradictions.