"House Estermont"@en . "House Estermont of Greenstone is a vassal house from the Stormlands that holds fealty to House Baratheon. Their seat is Greenstone, a castle located on the island of Estermont in Shipbreaker Bay. Their sigil is a dark green sea turtle on a field of pale green."@en . . . . "House Estermont"@en . . . . . . . . "Uncertain"@en . . . "Greenstone"@en . . . "A dark green sea turtle on pale green"@en . . . . . . "House Estermont of Greenstone is a vassal house from the Stormlands that holds fealty to House Baratheon. Their seat is Greenstone, a castle located on the island of Estermont in Shipbreaker Bay. Their sigil is a dark green sea turtle on a field of pale green."@en .