'Churches in France and elsewhere in Europe have been battling falling numbers, a trend evident not only in the empty pews, but in the sharp fall in baptisms. But "de-baptisms", a church's deletion of one's name from the official baptismal registry at a parishioner's request, are a recent phenomenon, and they are taking place in both Protestant and Catholic communities.

There are no official statistics, but experts and activists count the numbers of those seeking de-baptism in the tens of thousands, and websites offering informal "de-baptism" certificates have mushroomed.'

Read more: Voluntary 'De-Baptism' Rising in Europe