|Book(s)|| A Feast for Crows (mentioned)|
A Feast for Crows
During the kingsmoot, Alvyn offered his support to Victarion Greyjoy. He is listed as one of Victarion's supporters at the kingsmoot. At the feast celebrating the ironborn victory at the Battle of the Shield Islands, Alvyn was one of those who shouted down King Euron's plans to sail to Slaver's Bay.