Cersei takes Jon to the dungeons

Cersei took his arm and wheeled him around, leading him to a doorway at the side of the throneroom. “When he was alive, your father sought to reunite the Seven Kingdoms and put rights the wrongs that had set the Great Houses against each other. You are prophesised to do the same now.”

The queen stopped and put a hand on his chest, her face right in front of his. “Your father was given his name from a prophecy; it was said in the annals of Valyria that a warrior with the name of Rhaegar Targaryen will restore a great kingdom to its former glory. Your father’s naming was a mistake; he learned at the end of his life that he was not the prince that was promised. That was why your mother passed the name on to you. Your birthname was Rhaegar.”

“For my entire life I have never been called that name once,” Jon said. “Why should I go by it now?”

“Hmm,” Cersei seemed to be witholding something as she took his arm again and led him further down a narrow, winding stone passageway. “You are the most important man in Westeros, Rhaegar. No one can tell you what to believe. I certainly cannot. All I ask is that you watch very carefully what is about to happen.”

They emerged into a circular set of gloomy stone galleries which created a small arena. The platform beneath them was empty, but several onlookers dotted the tiered benches.

Cersei led Jon to a a dark-skinned woman in a low-cut green dress was standing with a blonde girl dressed in pink. “Rhaegar Targaryen, can I introduce you to the Lady Taena Merryweather and my daughter, the Princess Myrcella.”

Both women curtsied to him. Jon could not help but notice that Myrcella’s dress was so frilly and transparent that he could clearly make out every detail of her heaving breasts, down to her pink areola.

“It’s about to start, mother,” the princess said excitedly.

The queen smiled at her daughter. Then she raised a hand. “Bring in our other prisoners.”