|Book(s)||A Feast for Crows (Mentioned)|
Archmaester Vaellyn is one of the testers at the Citadel. He teaches and judges the subject of the heavens. He is renown for his acid tongue, which has earned him the nickname 'Vinegar Vaellyn'. He gave Archmaester Marwyn the nickname, 'Marwyn the Mage.' His ring, rod and mask are made of bronze.