Psychpanalyst and writer, Claude Delay (born 22 December 1934 in Neuilly-sur-Seine, is also the author of several biographies of Coco Chanel, the Russian poet Marina Tsvetaeva and the brothers Alberto and Diego Giacometti. The granddaughter of the surgeon and politician Maurice Delay , she is the daughter of professor Jean Delay and the sister of the novelist Florence Delay of the Académie française