MR Hensman is incorrect when he states (Bugle, Thursday November 21 edition) that King Charles I was of the Roman Catholic faith.
Although married to a Catholic queen, Charles was in fact Protestant (although of what we would now call 'high church' inclination).
The Civil War was primarily caused by Charles' insistence on the Divine Right of Kings and hence his belief that he could rule (and impose new taxes) arbitrarily without reference to Parliament.
A secondary factor was probably the popular belief that because of his 'high church' leaning, the queen may have persuaded him to change his faith.
7 Nailers Drive, Burntwood, WS7 0ES.