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:

Lord Tommen Costayne, Lord of the Three Towers.

Aemon Costayne, a famous singer.