Rev. Peter John L'Estrange, AO, is an Australian Jesuit priest and historian currently residing in Canberra. He was Special Assistant to the President at Georgetown University until 2013, having previously served as the Master of Campion Hall at the University of Oxford in the UK until 2008. L’Estrange also served as chaplain and rector of Newman College, at the University of Melbourne. From 1981 until 1983 he was the Roman Catholic chaplain to the University of Queensland. L'Estrange was educated at St Aloysius' College, Sydney, where he was both school captain and dux. He undertook graduate study at Campion Hall, Oxford and in 1991 was awarded the degree of Doctor of Philosophy (DPhil) for his thesis, The Nineteenth-Century British Jesuits, with Special Reference to their Relations with the Vicars Apostolic and the Bishops.