Game Of Thrones Season 6: Biggest Theories Over Leaked Episode Titles
Episode 10 - Valonqar

Valonqar is such an obvious title it surely cant be true or mean what it emphatically implies. We hear the term during Cerseis prophecy from Maggie the Frog during the opening scene of Season 5. It translates from High Valeryian to Err English, as little brother and the young Queen-to-be was told that shed watch her three children die before the valonqar kills her.
Tyrion is the odds-on favourite to do the deed, but you could never rule out Jaime Lannister from anything after his character transformation. Still, Valonqar does sound too obvious for a subtle Thrones title. The show purposefully goes against the most likely instance to happen, so while Cerseis death is heavily implied, could she turn the tables and kill the valonqar herself. Now that would be a huge shock. Well just have to wait and see whether these titles turn out to be true and play out in their expected ways.