House Celtigar of Claw Isle rules Claw Isle, an island in the narrow sea off the coast of Crackclaw Point. The Celtigars are historically sworn to Dragonstone within the Crownlands. Their arms depict red crabs strewn on white. Their words are, "We Fear No Storm." The current head of House Celtigar is Lord Terrence Celtigar.
House Celtigar is an ancient and proud house, with the blood of old Valyria in its veins. Crispian Celtigar served as master of coin to Aegon I Targaryen. The Celtigars claim dominion over Crackclaw Point, but the inhabitants do not acknowledge their claim. When they surrendered peacefully to Visenya Targaryen during the War of Conquest, the people of Crackclaw were officially freed from pledging fealty to anyone but the Iron Throne. The Celtigars occasionally send men there to collect taxes. If Lord Celtigar sends enough collectors, a few come back to him.
During the Dance of the Dragons, Lord Bartimos Celtigar sat on the black council to Queen Rhaenyra Targaryen. In 161 AC, Aerion Celtigar, a Kingsguard, died defending Prince Baelor Targaryen.