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Grand Maester.svg Grand Maester
Grand Maester.svg
Title Grand Maester
Culture Westerosi
Died 127 AC
King's Landing[1]

Played by David Horovitch
TV series House of the Dragon: Season 1

Mellos was a Grand Maester during the reign of King Viserys I Targaryen. In the television adaptation House of the Dragon, he is portrayed by David Horovitch.[2]


Mellos was called a moderating voice while on the small council, always urging calm and compromise whenever issues arose between the blacks and the greens. King Viserys I Targaryen regarded Mellos as a trusted friend.[1]


Maester Mellos replaced Runciter as Grand Maester in 112 AC. He encouraged the match between Laenor Velaryon and Princess Rhaenyra Targaryen, despite the fact that Laenor was known not to be interested in women. He also counselled forgiveness for Prince Daemon Targaryen, the controversial brother of King Viserys I Targaryen.[1]

In 120 AC, Mellos in his writings is the one that suggested that the fire at Harrenhal that killed Lord Lyonel Strong and his heir, Ser Harwin Strong, was ordered by Viserys. Mellos implies that the king had come to accept the rumors that his grandchildren by his daughter, Rhaenyra, were really bastards sired by Harwin, thus he desired to keep the truth concealed and kill the man who had dishonored his daughter.[1]

When King Viserys fell and sliced his hand open on the Iron Throne, Mellos was unsuccessful in treating the laceration. Princess Rhaenyra flew her own maester, Gerardys, from Dragonstone to treat her father. Gerardys swiftly amputated two of the king's fingers, saving his life.[1]

Mellos passed away one night in 127 AC, collapsing while climbing the serpentine steps. Rhaenyra recommended that Gerardys take his place as Grand Maester. Queen Alicent Hightower, on the other hand, wanted Maester Alfador, who served House Hightower, named to the office. Beset from both sides, Viserys chose neither, reminding both his wife and daughter that the Citadel would decide who filled the office. Archmaester Orwyle, in the end, was selected by the Conclave as the new Grand Maester.[1]

Mellos's written accounts were used frequently by Archmaester Gyldayn in his own writings. Gyldayn considered Mellos's frequent leechings to be less effective than Maester Gerardys's potions and tinctures.[1]


What of it? I am not fond of fish, but when fish is served, I eat it.[1]

—Mellos, on the match between Laenor Velaryon and Rhaenyra Targaryen


  1. 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 Fire & Blood, Heirs of the Dragon - A Question of Succession.
  2. House of the Dragon Cast & Characters
Preceded by 10th Grand Maester
112127 AC
Served under: Viserys I Targaryen
Succeeded by