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A Game of Thrones (appears)|
A Clash of Kings (mentioned)
A Storm of Swords (appears)
A Feast for Crows (appears)
A Dance with Dragons (appendix)
- See also: Images of Colemon
He is thin and nervous, with too little hair and too much neck.
Colemon was the personal maester to King's Hand Lord Jon Arryn during his stay in King's Landing. He treated Jon Arryn when illness struck him by purging him. When Arryn's condition began to improve, Colemon was sent away by Grand Maester Pycelle. Jon Arryn's illness worsened afterwards, and he soon died.
After Jon's death Colemon returned to the Eyrie with the rest of Lady Lysa Arryn's entourage. He was entrusted with constant care of Lysa's child, young Lord Robert Arryn, who is afflicted with a shaking sickness. Colemon leeched him often to rid of his bad blood and gave him concoctions to ease his pain.
A Game of Thrones
Maester Colemon greets Lady Catelyn Stark upon her arrival at the Eyrie. When a letter from Edmure Tully arrives at the Eyrie informing Catelyn and Lysa Aryn about the conflict between Casterly Rock and Riverrun, Colemon informs Ser Brynden Tully about its contents. Nervous about the upcoming bloodshed, Colemon gets drunk on wine before Tyrion Lannister's trial by battle is to start, and lets it slip to Catelyn and Ser Rodrik Cassel that Lord Jon Arryn had planned to send his young son Robert to Dragonstone, to be fostered by Lord Stannis Baratheon.
A Clash of Kings
During his interrogation by Tyrion Lannister, Grand Maester Pycelle lets it slip that Colemon had been having success in purging the poison which had been killing Jon Arryn, and that he had sent Colemon away to allow Lord Jon's condition to worsen.
A Storm of Swords
A Feast for Crows
Colemon is present when Lord Petyr Baelish welcomes Lord Nestor Royce to the Eyrie. He is in attendance when Alayne Stone tells how Lady Lysa Arryn had been killed by the singer Marillion. When Lord Robert Arryn, upon hearing the tale, suffers another attack from his shaking sickness, Colemon goes to the boy's chambers to bleed him. He later gives Robert dreamwine to help him sleep when the boy claims to hear Marillion singing in the night.
Colemon expresses his worries about the treatments he gives Robert to Lord Baelish, as Robert's spells have grown worse since the boy's mother has died. Baelish orders him to add a pinch of sweetsleep to the boy's milk, before bringing him to meet the Lords Declarant.
Lady Anya Waynwood attempts to persuade Baelish to send Robert to Runestone, where Lord Yohn Royce's maester, Helliweg, could treat Robert, claiming that Helliweg is more experienced and better suited to treat Robert's frailties than Colemon.
The day the inhabitants of the Eyrie are to descent in preparation for winter, Robert empties his chamber pot upon Colemon. Robert complains to Alayne Stone that Colemon had put something "vile" in his milk. Colemon suggests giving Robert some milk of the poppy so the boy will slumber during the descent, but Alayne refuses the notion. She orders him instead to give Robert a cup of sweetmilk, which the maester objects to, fearing the poison is building up too much in Robert's blood. He reveals that Robert's blood has grown so thin that he had begun to fear leeching the boy. When Alayne insists that Colemon should give Robert a cup of sweetmilk before the descent, and one shortly after, Colemon insists that it must be the last cup for at least half a year. He later accompanies Robert and Alayne down the mountain.