FYI Mr Zurf, there are no X,Z,K,J,Q or V's in the Welsh alphabet, but close 
but you will find Dd which sounds like a hard th. Ll, is totally unexplainable, Ch, which is good for clearing your phlegm and Ff which sounds like F as F sounds like V. it may sound complicated, but it's my first language 
history lesson coming up;
Christianity was well established in Britain long before the English (Vikings) or the Roman catholic church came along. St David, who is buried in the cathedral in the city that bears his name on the west coast of Wales was kicking evil's backside just after the Romans left and died in the 6th century.
another piece of trivia for you, i once wrote a song called "magie coulter" about a homeless lady that died on her pilgrimage to the city of St Davids...seems like a long time ago....