Final answer:
James had two daughters from his previous marriage before having a son with his second wife in 1688, which led to concerns over the succession and potential religious conflict in England.
Step-by-step explanation:
James had two daughters from his first marriage before his second wife, Mary of Modena, gave birth to a son. The Protestant daughters from his first wife were passed over in the succession line in favor of his new son, who was born in June 1688 and was a Catholic, leading to significant political and religious implications for England. This son was referred to by some as James III, stirring controversy and rumors such as the child being a switched baby at birth, though this was never proven.