Cardinal George Pell is a frequent flyer, travelling in comfort in Business Class. During his years as Archbishop of Sydney, he would regularly make the flight to Rome so as to keep an eye on career opportunities at the Vatican. Now he has become the third most important person in the Vatican, possessing a Vatican passport. He still travels from his Rome headquarters to other countries. For example, during 2016 and 2017, he has made a number of air trips from Rome to London (for example, most recently, in mid-May 2017). But he is reluctant now to make a public appearance in Australia.
Although George Pell was "not well enough" to re-appear in Australia during 2016, his health did not prevent him from travelling from Rome to other countries around this time.
In November 2015, just weeks before he was due to attend the Royal Commission in Melbourne, Pell travelled to France (to visit World War One battlefields), according to a report published later in the Melbourne Herald Sun. Evidently his health did not prevent him from making this trip.
A church organisation (the New Liturgical Movement) reported, on 26 May 2016, that Cardinal George Pell conducted a Pontifical High Mass at the London Oratory for the Feast of St Philip Neri.
Dan Hitchens, deputy editor of the Catholic Herald (U.K.), reported on 29 Nov 2016 that Cardinal Pell gave a talk at St Patrick’s Church, London, about contemporary Catholicism.
On 13 May 2017, the Sydney Morning Herald website (and other media outlets) published a photograph of Cardinal Pell arriving at London's Heathrow airport. The photo was taken by an Australian journalist (Zoie Jones), who is based in Rome. Evidently this journalist happened to notice Cardinal Pell walking through the airport, with his luggage, after the plane landed.
Pell doesn't seem to have "health problems" in France or other countries, only in Australia.
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