In reply to dissonance:
Well a lot of spin. England was largely protestant. I think Charles II converted to Catholicism near death and his brother, the Duke of York/JamesII was Catholic and so was his (second?) wife. Too much for some, so they opted for William and Mary (James' daughter from his proddy first wife).
They had no offspring, so James' other daughter came next. She had a horrible time with miscarriages and child deaths (10?).
James/Jacobus/Jacob/Jacobite/Jack
The Jacobite rebellions were about trying to restore the line of James II, through son (Old Pretender ~1715) and grandson (bonny Charles, Young Pretender 1745)