|Title || Grand Maester|
|Died || In 42 AC, at King's Landing|
|Book(s) || The Sons of the Dragon (mentioned)|
Myres was a maester of the Citadel who served as Grand Maester during the reign of King Maegor I Targaryen.
After returning to King's Landing following his victory at the battle at the Great Fork, King Maegor declared his intent to take Tyanna as his new wife. Grand Maester Myres dared to speak against the marriage openly, stating that Maegor's true wife awaited at the Hightower. King Maegor heard him out in silence before drawing Blackfyre and killing Myres where he stood. 
Myres was one of three Grand Maesters that were executed during Maegor's reign.