All of the following sixteenth- and seventeenth-century English monarchs were Protestant EXCEPT

Elizabeth I was a staunch supporter of the Protestant faith and played a crucial role in establishing the Protestant Church of England. Her reign marked the consolidation of Protestantism, and she enacted the Elizabethan Religious Settlement, which sought to unify the Church of England and reinforce its Protestant foundations.

James I, who ruled from 1603 to 1625, was also a Protestant monarch. He succeeded Elizabeth I and continued her policies, promoting the Anglican Church and commissioning the King James Version of the Bible, which further solidified Protestant influences in England.

William III, who reigned from 1689 to 1702, was a Protestant and a key figure in the Glorious Revolution. He came to the English throne in part to secure Protestantism against Catholic threats, particularly the reign of James II, and his leadership reinforced Protestantism in England.