55. Brice Dondarrion (sort of)

Dondarrion was the leader of the Brotherhood Without Banners, a group Ned Stark sent to the Riverlands while he was Hand of the King to bring Ser Gregor Clegane (The Mountain) to justice when news came that he was raiding villages in the Riverlands.

Time of death: Season 3, episode 5, "Kissed by Fire"

Cause of death: The Hound defeated him in a trial by combat.

Sadness ranking: 3. He didn't really die, because Thoros of Myhr brought him back to life with his Lord of Light powers. But he loses a part of himself every time he comes back, so that's kind of sad.