Final answer:
Thomas Cromwell was the minister of King Henry VIII of England who convinced him to break from the Catholic Church and become head of the Church of England.
Step-by-step explanation:
The minister of King Henry VIII of England who was largely responsible for convincing him to break from the Catholic Church and become the head of the Church of England was Thomas Cromwell. Along with Thomas Cranmer, Cromwell advised Henry to separate from the pope and secured parliamentary acts that made Henry the head of the new church. This move allowed Henry to obtain an annulment of his marriage to Catherine of Aragon.