Henry VIII

King of England who broke with Rome to annul his marriage to Catherine of Aragon — founding the Church of England — and who had six wives, executed two of them, and whose political and religious decisions fundamentally shaped England's religious and constitutional identity.

Performed the English Reformation — not through Protestant conviction but through dynastic need — creating the Church of England as a political institution that permanently separated England from Rome and established royal supremacy in religion, with consequences for English constitutional development still visible today.