After suffering many years of poor health, on 5 September 1997, Mother Teresa died in her convent in Calcutta, after a heart attack [ref]”Mother Teresa dies at 87 years old after heart fails at a convent in Calcutta in 1997” by Jere Hester, article published by New York Daily News on the 6th of September 1997[/ref]. In 2003, the Vatican beatified her (the first step to being canonized).