What if Charles II of England was able to have legitimate children? How would it affect history?
With Catherine of Braganza a Roman Catholic, would we not see the same issues as with Mary of Modena and James Stuart, just brought forward a number of years?
Unless Charles explicitly states Charles Jr must be raised a protestant, or perhaps Catherine dies in childbirth and thus her influence is limited?
At a long shot, she survives childbirth but the Popish Plot results in her being found guilty and she's imprisoned in the Tower?
Charles was smart enough toCharles II's children will be Protestant or Charles II loses his head like his father. Parliament and the country just would not accept a decision to raise them Catholic. Indeed tutors etc would be probably picked by Parliament to guard against Papist Plots. Got to remember Charles II was very aware he was king only as long as he conformed.
That said, with no Catholic Pretenders abroad, anti-Catholic measures would be lessened and fade away quicker due to less fear. No Glorious Revolution and British interest in the Continent is also lessened ( apart from trade ). You can end up with a very different American situation later if Britain is not getting involved on the continent and just fights Colonial Wars.