Although John Paul II is remembered as the travelling pope, it was Paul VI who first took advantage of air travel to take his message to distant lands.

As the first pope of the jet age, he went to India, Uganda and the Holy Land, and addressed the United Nations in New York.

He continued changes set in motion by his predecessor, telling churches around the world to conduct services in the language of the people, rather than in Latin.

His papacy was most controversial because of his condemnation of artificial birth control. The document he produced – Humanae vitae - remains the church's policy on contraception today.

At times, Paul VI seemed to be weighed down by the troubles of the world.