After the pope refuses Henry's request to have his marriage annulled, he returns to France and brings in his old buddy Richard Delacroix to prosecute Evil Anne of Green Gables for adultery. Because if you can't get rid of your troublesome wife amicably, obviously what you should do is call her a filthy whore. Evil Anne calls in her vicious, bloodless Medici relatives to help her.
Evil Anne's spies tell her how much time Mary and Bash are spending in the wine cellar with Jeanne, the wet nurse. Evil Anne discovers Isabelle's baby, li'l Paganette, and the Medicis try to track her down so Evil Anne can use her as evidence that Bash is a pagan. But they misplace the baby somewhere in the French countryside. Oops!
Evil Anne tells Henry anyway that she thinks Bash is a pagan because his mom was also a pagan. Henry already knew about Diane's past and he's crushed that Evil Anne betrayed him this way -- and this after they had a tender reconciliation and slept together.
But! It turns out Evil Anne and Richard had an affair back when she was a childless baby queen, fretting about her inability to give Henry an heir. She conceived Richard's child, delivered it, and when she saw a birthmark on the baby's face, gave her away to Sexy Nostradamus's father, who did a bunch of terrible experiments to try to remove to the port wine stain and only succeeded in horribly deforming the baby. That baby: Clarissa, the bag-headed castle "ghost" who's obsessed with protecting Mary.
It appears that Evil Anne is out of cards to play. Her Medici relatives abandon her because they don't want the stink of her failure soaking into the clothes. Henry's ready to chop her head off. And her children are… somewhere? Probably? I mean, there's like six of them still living at home, so they have to be rambling around in the castle. So Evil Anne tries to kill both Mary and herself with poison, which would neatly wipe out all her problems at once. Except Clarissa saves the day (for Mary) again. Evil Anne's going to have a hell of a time keeping her head now.
Previously on Reign: Henry locked Evil Anne of Green Gables in the tower while he went to Rome to legitimize Bash. Bash and Mary tried to help Bash's pagan cousin, Isabelle, escape the castle, but she went into labor, delivered her baby, and died. But not before she was able to mark the baby as a pagan.
A few days after Isabelle's death, it seems, Jeanne, the nursery worker, has brought li'l Paganette to see Mary and Bash. Mary asks for a moment alone with the baby and looks at Paganette's foot; the mark Isabelle put there is fading and soon they can shlep her off to a convent. But Bash still frets, wild-eyed. He's worried that someone finding out about his pagan connections will put Mary at risk (as if we needed a big blinking sign over his head that says THIS ONE IS NOT LIKE FRANCIS). Mary just cuddles the baby and sniffs her head and explains the plan for Agnes (she's Jeanne's mom), to take Paganette to a convent. This is everyone's solution: convents! Jeanne comes running back to inform them that Henry has returned—and he's brought Medicis.
In Evil Anne's horrible tower room, she's sullenly choking down a plate of porridge when the door opens. Servants bring in a couple of extra chairs for Francesca and Pietro, Evil Anne's relatives. Francesca is just horrified to see the conditions Evil Anne is living in—and how ratchet she's let her hair get. Francesca explains that the Medicis are opposing Henry's petition for an annulment, and they were successful in getting the pope to refuse to see Henry. With that avenue of escape from his marriage thwarted, Francesca coolly explains, Henry now plans to have Evil Anne executed for committing adultery.
The servants fixing up Evil Anne's room also bring in the executioner's block as Pietro explains that a couple of Henry VIII's wives practiced putting their heads on the block so they could be dignified when he executed them. (I can't quite imagine Natalie Dormer doing that, but that's mainly because in my alternate-history version of The Tudors, she smothered Henry to death with her thighs and went on to rule England as a heathenish pit of degeneracy.) Neither Pietro nor Francesca seems particularly bothered by the possibility of Evil Anne's execution, even as they smile placidly and say they'll do everything they can to help her. Evil Anne just gulps and stares at the block.
Sexy Nostradamus! He's alive! And he's being thrown in the dungeon, because he's the one Henry is accusing of sleeping with Evil Anne.