Game Of Thrones Season 6: 12 WTF Moments From Oathbreaker
4. Olenna Trolls Cersei
When Cersei, Jaime and The Mountain interrupt the council meeting, Olenna Tyrell mentions that one of the issues they want to discuss is the Queen's imprisonment. Cersei then takes the opportunity to thank Olenna for bringing up her own cruel maltreatment, before Olenna replies, "Margaery is the Queen. You are not the Queen because you are not marred to the King. I do appreciate these things can get a bit confusing in your family."
Boom. What a sick burn, not only cutting Cersei down to size for her egotistical comment but getting a snide jab in about the "rumours" of her incestuous relationship with Jaime.