Peter Abelard was a French philosopher and the greatest logician of the 12th century. He taught in Paris, where Heloise was his pupil. After the tragic end of their marriage, she became a nun & he a monk. Betty Radice was the editor of the Penguin Classics during the 1960-70s & an acclaimed translator from Latin, Greek & Italian. Michael Clanchy researches at the Institute of Historical Research UCL & the Warburg Institute.