He is believed to have died of unknown causes on 25 October 1400, but there is no firm evidence for this date, as it comes from the engraving on his tomb, erected more than one hundred years after his death. There is some speculation—most recently in Terry Jones ' book Who Murdered Chaucer? : A Medieval Mystery —that he was murdered by enemies of Richard II or even on the orders of his successor Henry IV, but the case is entirely circumstantial. Chaucer was buried in Westminster Abbey in London, as was his right owing to his status as a tenant of the Abbey's close. In 1556, his remains were transferred to a more ornate tomb, making Chaucer the first writer interred in the area now known as Poets' Corner .