This is an idea I had on the weekend. Jane Parker Boleyn, Viscountess of Rochford is possibly one of the more maligned of the Tudor figures. In fact, something often pounced upon is that the marriage to George Boleyn was unhappy because there are no kids. Lady Rochford is also generally portrayed as a scheming shrew who makes George's life miserable, or as a sacrificial lamb who George's philandering makes unhappy, and plays an instrumental role in the Boleyns fall.
So, my POD results in Jane putting her scheming and conniving for a slightly better end: WI she and George had had a son? How might this sprig of the Boleyn family affect not only Jane's future? And what role might said child have on the English tableau of English politicking of their lifetime? Will this kid inherit Grandpa Boleyn's titles of earl of Wiltshire and Ormond? (George's attainder would've deprived him of the Rochford viscountcy, but it didn't affect Thomas Boleyn's earldom IIRC)
Please discuss this sadly underused POD