<p>Vatican City: Pope Francis died of a stroke and irreversible heart failure, Vatican doctor Andrea Arcangeli said in a death certificate released on Monday for the 88-year-old pontiff.</p><p>The certificate, which was published by the Vatican, said the pope had fallen into a coma before his death early on Monday. </p>
<p>Vatican City: Pope Francis died of a stroke and irreversible heart failure, Vatican doctor Andrea Arcangeli said in a death certificate released on Monday for the 88-year-old pontiff.</p><p>The certificate, which was published by the Vatican, said the pope had fallen into a coma before his death early on Monday. </p>