I did not know this! From a 2007 BBC News story:

Piece of work

For some of Gill’s fans, even looking at his work became impossible. Most problematically, he was a Catholic convert who created some of the most popular devotional art of his era, such as the Stations of the Cross in Westminster Cathedral, where worshippers pray at each panel depicting the suffering of Jesus.

In 1998, spurred on by a cardinal’s praise for Gill, Margaret Kennedy, who campaigns for Ministers and Clergy Sexual Abuse Survivors, called for the works to be removed.

“Survivors couldn’t pray at the Stations of the Cross. They were done by a paedophile. The very hands that carved the stations were the hands that abused.

“He abused his maids, his prostitutes, animals, he was having sex with everything that moved – a very deranged man sexually.”

But the Catholic Church would not budge an inch. The former Westminster Cathedral administrator, Bishop George Stack, retains an unequivocal view.

“There was no consideration given to taking these down. A work of art stands in its own right. Once it has been created it takes on a life of its own.”

It might be easier to make this argument for the Stations of the Cross than for nude sketches of Gill’s teenage daughter.

via Can the art of a paedophile be celebrated? – news.bbc.co.uk