Henry became desperate to have a son. By 1527, Henry was wanting to divorce Catherine and marry Anne Boleyn. The Roman Catholic Church said he could not divorce without asking the Pope. Henry asked the Pope, but the Pope would not do this. The Pope said it went against the teachings of the church. Henry blamed Wolsey for failing to change the Pope's mind. He sacked Wolsey and ordered him to be put on trial, though Wolsey died before the trial could happen. After that, Thomas More became his main advisor. But More opposed the divorce, so he was replaced a few years later by Thomas Cromwell. Henry also chose a man called Thomas Cranmer to be the Archbishop of Canterbury. Henry knew that Cranmer would do what he wanted, and Cranmer agreed that Henry could have a divorce from Catherine. The Pope did not know this, so he let Cranmer become the archbishop.