From A Wiki of Ice and Fire
|Born||In or between 272 AC and 280 AC|
A Clash of Kings (appendix)|
A Storm of Swords (mentioned)
A Feast for Crows (appendix)
A Dance with Dragons (appendix)
Willamen Frey is a maester of the Citadel in service at Longbow Hall to House Hunter. He is the seventeenth son of Lord Walder Frey and the third son born in the marriage between Walder and Bethany Rosby. He took his vows in 298 AC.