What religions existed in 1564 in England?

England was a Protestant country, meaning that they practiced a form of Christianity that did not exactly follow the teachings of the Pope or what the Catholics practiced.

Protestantism as a whole was founded by Martin Luther, who nailed 95 Theses to the door of a Catholic church, listing the things he believed needed to change in the church, like the selling of indulgences and the corruption of the religious leaders.

Protestantism first spread to England as a result of King Henry VIII, who was excommunicated from the Catholic church by Pope Clement VII, who also refused his request for a divorce from Catherine of Aragon (Catherine was the niece of one of the Pope's most valuable allies, Charles V, who was also Holy Roman Empire and king of most of Catholic Europe). Henry VIII split away from the Church and founded his own religion, which mainly followed the same teachings as Catholicism, but did not follow the Word of the Pope. This was called Anglicanism.

Mary Tudor, however, known as Bloody Mary, who succeeded Edward VI, who had in turn succeeded Henry, ruled as a Catholic queen. She gained her nickname for her reputation for burning alive and murdering all of her Protestant subjects who refused to convert back to Catholicism. She married Phillip II of Spain, a strong Catholic ally of the Pope.

Elizabeth I once again ruled as a Protestant country, satisfying those of her subjects who feared eternal damnation by continuing to keep the religion as close to Catholicism as possible, instead of following the more alienating practices of Martin Luther and John Calvin.