In Memoriam: "Game of Thrones" Season 76 of 12
Olenna Tyrell (Diana Rigg)
Final Appearance: "The Queen's Justice"
Cause of Death: Executed via poison by Jamie Lannister (Nikolaj Coster-Waldau) after the overthrow of Highgarden, the seat of House Tyrell.
Final Appearance: "The Queen's Justice"
Cause of Death: Executed via poison by Jamie Lannister (Nikolaj Coster-Waldau) after the overthrow of Highgarden, the seat of House Tyrell.
PeopleDiana Rigg