House Costayne ( Costayne )
House Costayne of Three Towers is a noble house from the Reach, sworn to the Hightowers. Three Towers is located on the southern coast of the Whispering Sound. They blazon their shield with quartered: a silver chalice on black, a black rose on gold.
The known members of this house are:
Aemon Costayne, a famous singer.