House Estermont of Greenstone is a noble house from the Stormlands, ruling the small island of Estermont south of the Shipbreaker Bay. Their arms depict a dark green sea turtle on pale green.
The known members of this house are:
Lord Eldon Estermont, Lord of Greenstone. An ancient man. Old-fashioned and cautious.
Ser Aemon Estermont, Eldon’s eldest son and heir.
Ser Alyn Estermont, Aemon’s son.
Ser Lomas Estermont, his second son.
Ser Andrew Estermont, Lomas’ son.