keynes died of a heart attack at his holiday home in tilton, east sussex. his heart problems were made worse by the strain of working on post-war international financial problems. he died soon after he arranged a guarantee of an anglo-american loan to great britain. keynes' father, john neville keynes (1852–1949) outlived his son by three years. keynes's brother sir geoffrey keynes (1887–1982) was a distinguished surgeon, scholar and bibliophile. his nephews include richard keynes (born 1919) a physiologist; and quentin keynes (1921–2003) an adventurer and bibliophile. keynes did not have children.