A woman prays in front of a painting depicting Pope John Paul II in a church in  Rome yesterday. On Sunday, Pope Francis will canonise late Pope John Paul II, who reigned from 1978 to 2005, and Pope John XXIII, who was pontiff from 1958 to 1963 and called the Second Vatican Council. Photograph: Reuters/Max Rossi

The postulator for the sainthood of Pope John Paul II, due to be canonised next Sunday along (...)