Daily Monitor Tuesday April 27 2021 Summary The official verdict, supported by an autopsy carried out by his British captors, was that he died aged 51 of stomach cancer on May 5, 1821. Advertisement Two hundred years after his death in exile, conspiracy theories continue to swirl about how exactly Napoleon Bonaparte met his end on the windswept South Atlantic island of St. Helena. The official verdict, supported by an autopsy carried out by his British captors, was that he died aged 51 of stomach cancer on May 5, 1821. But even then many -- not just in France -- were sceptical, leading to numerous often colourful conspiracy theories.