House Costayne of Three Towers is a noble house from Three Towers in 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. Their words are "Our Thorns Cut Deep".

Notable Members Edit

Gregor Costayne (unknown)

Cedric Costayne

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