|Allegiance || House Costayne|
|Book(s) || A Storm of Swords (mentioned)|
Aemon Costayne is a member of House Costayne and is a traveling singer.
A Storm of Swords
Symon Silver Tongue tells Tyrion Lannister that Aemon is one of the seven singers who is to perform at the wedding feast of King Joffrey I Baratheon and Queen Margaery Tyrell.