Leaders of all three of Britain's main political parties have condemned last week's ruling by the European Court of Human Rights that "state-sponsored" religious buildings must be available for use by all major faiths.
Although the decision in Ali v the Kingdom of Denmark did not deal explicitly with Britain, its links to the monarchy mean that the Church of England, like the Danish State Church, will fall within the scope of the ruling.
The Catholic, Methodist and Presbyterian churches will be unaffected as they have no links to the Crown at all.
The Muniments Office at Canterbury Cathedral has pointed out that whether the ruling affects particular church buildings will depend upon whether their founding documents include the "anti-heresy" provisions common in medieval times and limit the scope for secular interference. The oldest churches, including Westminster Abbey, should be exempt.
Anti-heresy provisions became illegal after the dissolution of the monasteries in 1536, so buildings erected after that date will not be protected.