Tear Jerker / Dragons of Ice and Fire

• Mace Tyrell's utter distress about his daughter's ordeal: the man may not be the sharpest tool in the shed, he loves his children dearly and he can't do anything to save them.
• The utter ruin that Cersei is reduced to, all of her children are dead, Qyburn and Jaime have abandoned her and all she has left is Lancel who is a zombie who can do nothing but recite the song of the seven and the dead body of Tommen which she cradles in her arms. She also seems to be terribly aware of how far she is fallen, referring to herself as ugly and a hideous crone and a hag. Her death can't even be argued as a mercy kill, as she sees all the people she's wronged strangling her and all she sees is hate in their eyes.
• Kevan Lannister. Just... everything that happened to the poor man. The brother he outright worshipped, killed by his nephew. His wife and youngest children, murdered by raiders who also ruined their house. His eldest son, reduced to an undead monstruosity by his niece. After he strangled Cersei, he's so broken he's Driven to Suicide.
• Doran Martell is so broken up over the death of his eldest son, the trauma his youngest son suffered during Princess Myrcella's murder, and believing that his daughter organized the coup against him that he's Driven to Suicide.