Ser Gwayne Hightower is a knight of House Hightower who appears in the HBO series House of the Dragon. He is a son of Ser Otto Hightower and a brother of Alicent Hightower, and grew up at Oldtown while the rest of his family removed to the Red Keep at King's Landing. An arrogant and outspoken knight, he is aligned with the Greens in the succession dispute over the Iron Throne.
In the first season, Gwayne travels to King's Landing to compete in the Heir's Tournament, where he is unhorsed by Prince Daemon Targaryen. In the second season he joins Ser Criston Cole's campaign to secure the Crownlands and Harrenhal for King Aegon II, fighting at Duskendale and at the Battle at Rook's Rest, where he rallies the Green soldiers to take the castle after the dragon Meleys falls. His story unfolds during the civil war known as the Dance of the Dragons.
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