Prof. Jack Scarisbrick, an expert on Henry VIII, has a piece at the Catholic Herald that begins,

How would King Henry VIII react to the news that Cardinal Vincent Nichols will preside at Catholic Vespers in the Chapel Royal of Hampton Court Palace on February 9? Not just by turning in his grave (which anyway might be difficult since it is possible, if not probable, that his daughter Mary, when she became queen, had his tomb opened and his embalmed body burnt). No, there would be seething, bewildered anger and ruthless revenge immediately planned.

He was hard on English cardinals anyway. Cardinal Wolsey, who built magnificent Hampton Court (too magnificent for Henry’s comfort), would probably have lost his head had he not died a natural death a few days before facing a rigged trial for high treason. When John Fisher was given a red hat on the eve of martyrdom, Henry famously vowed that the bishop would never have a head to put it on – and carried out his threat.

(Emphasis supplied.) Read the whole thing there. We won’t spoil it for you, except to say that Professor Scarisbrick demolishes the idea that Henry VIII was some sort of Catholic.