As it says in the title. For England, either Catherine gives Henry a son, or she dies before Henry breaks with Rome, or Henry just decides that Mary is an acceptable heir after all. Either way, England remains in the Catholic fold. For France, I don't know enough about French history to say what the most plausible POD would be, but let's say that the French king embraces the new religion sometime in the 16th century, and manages to get enough Frenchmen to join him to avoid being overthrown or whatever.
What would be the result of this? France, despite being Catholic, spent a lot of the early modern period at war with the equally-Catholic Hapsburgs, so I'm not sure much would change in terms of France's foreign policy. Unless France somehow does better in the Italian Wars, we probably won't see a French Protestant army marching into Italy to depose the Pope, although no doubt plenty in the Roman Curia would worry about such a possibility anyway. Depending on when France switches, therefore, we might see TTL's Council of Trent happening a few years earlier.
As for England, IOTL anti-Catholicism and xenophobia were quite prevalent after the Reformation, and ITTL anti-Protestantism and xenophobia would probably play a similar role in solidifying the national identity. Protestants would probably be viewed like Catholics IOTL, i.e., a threatening fifth column for foreign absolutism (French, in this case, rather than Spanish).
One interesting question is how far the two religions would spread. IOTL England was more colonially-oriented than France, and this would probably remain the case ITTL, if only for geographic reasons (i.e., England can get away with not supporting a large army due to the English Channel). Since none of the other Protestant countries (Denmark, Norway, Sweden, some German states) have the numbers to become large-scale colonisers, this probably means that the spread of Protestantism beyond Europe is more limited compared to OTL.
Any thoughts?
What would be the result of this? France, despite being Catholic, spent a lot of the early modern period at war with the equally-Catholic Hapsburgs, so I'm not sure much would change in terms of France's foreign policy. Unless France somehow does better in the Italian Wars, we probably won't see a French Protestant army marching into Italy to depose the Pope, although no doubt plenty in the Roman Curia would worry about such a possibility anyway. Depending on when France switches, therefore, we might see TTL's Council of Trent happening a few years earlier.
As for England, IOTL anti-Catholicism and xenophobia were quite prevalent after the Reformation, and ITTL anti-Protestantism and xenophobia would probably play a similar role in solidifying the national identity. Protestants would probably be viewed like Catholics IOTL, i.e., a threatening fifth column for foreign absolutism (French, in this case, rather than Spanish).
One interesting question is how far the two religions would spread. IOTL England was more colonially-oriented than France, and this would probably remain the case ITTL, if only for geographic reasons (i.e., England can get away with not supporting a large army due to the English Channel). Since none of the other Protestant countries (Denmark, Norway, Sweden, some German states) have the numbers to become large-scale colonisers, this probably means that the spread of Protestantism beyond Europe is more limited compared to OTL.
Any thoughts?