From A Wiki of Ice and Fire
|Book||A Storm of Swords (mentioned)|
Turquin is a maester at the Citadel.
Turquin is of low birth being the son of a cordwainer.
A Storm of Swords
Turquin is considered by the Conclave as a replacement for Grand Maester Pycelle after Tyrion Lannister stripped Pycelle of his office and imprisoned him in the black cells.
- ↑ 1.0 1.1 1.2 A Storm of Swords, Chapter 12, Tyrion II.