However, the chance to pad through the shadowy aisles of damp barrels, and admire the ecclesiastical architecture shouldn't be missed.
In a swipe at his ecclesiastical critics, he wrote: "I know that some disagree with those policies – including a number within the Church of England.
On becoming a Jesuit, they also vow never to take ecclesiastical office, such as a bishopric, unless ordered to by the pope.This last vow is one of the reasons why Pope Francis's election was particularly surprising.
Even the exquisite 15th-century "Annunciation" in gold and enamel may not be perceived as the ecclesiastical treasure it is.
But he had other ideas: he convinced an ecclesiastical court that their union had never been valid, because they were close blood relations.After vain appeals to various civil and religious courts in Italy (to which she complained that she never got a chance to tell her story), she turned to the European Court of Human Rights, which in 2001 ruled in her favour and made a modest compensation award.
This week, Mr Keating resigned after Cardinal Roger Mahony, the archbishop of Los Angeles, said he had lost the confidence of ecclesiastical authorities (ie, bishops like him).Admittedly, Mr Keating's comments were somewhat over the top.
And though he may have the support of the pope's right-hand man, he is still an outsider trying to shake up the financial affairs of an ecclesiastical city-state that is notoriously resistant to change and external interference.
Their biggest impact has been on the courts, where disruptive behaviour and unusual arguments result in long delays as judges attempt to sort through what one called "a hotch-potch of irrelevancies".One member of the Church of the Ecumenical Redemption International argued that her car was not subject to motor-vehicle laws because it was "an ecclesiastical pursuit chariot".
In British churchyards, which fall under ecclesiastical law, bodies can be moved and graves re-deployed, though they rarely are.
The regime is different on Facebook, where individual account-holders are told to use (at least part of) their legal names and to avoid professional or religious titles; this irks traditional Christian clergy, who cannot call themselves "Father.... ...... or use an ecclesiastical name if it is different from their legal one.
