Oh dear, the modern age sticks it's PC toe into things...
he was RC so really should be buried as such. Not his fault things changed 100 years later
As the Reformation and dissolution of the monasteries in 1536 changed religious denominations and made most cathedrals C of E, that's the way it is.
If you're a Christian, you believe in one
god - the same god in both the C of E and RC churches.