Estermont

House Estermont of Greenstone is a noble house from Greenstone in the stormlands and is one of the principal houses sworn to House Baratheon of Storm's End. They rule the small island of Estermont east of Cape Wrath. It is as yet unconfirmed if the Estermonts are of First Men or Andal ancestry. During the coming of the Andals, the Storm Kings from House Durrandon and many of their bannermen intermarried with Andals. Their arms depict a dark green sea turtle on pale green.