House Hoare of Harrenhal is an extinct Great House of Westeros. It ruled over the Iron Islands and the Riverlands when Aegon I Targaryen invaded the Seven Kingdoms. Their sigil depicts per saltire and with two heavy silver chains crossing between a gold longship on black (for the Iron Islands), a dark green pine on white (for Bear Island), a cluster of red grapes on gold (for the Arbor), and a black raven flying in a blue sky (for the Maesters of Oldtown) all bound by the chains of the Ironborn. Their sigil shows the extent of the Hoare holdings at their peak.