Note: No spoilers here, only content from the first 5 books and TWOIAF. Spoiler boxes are only used for organization. The first Casterly was named Caster and they were blessed by the old gods with gold for sparing lion cubs. They disappeared when there were no more sons during the Age of Heroes. Craster wears a gold bracelet and is connected to lords and castles. Craster’s keep recalls Casterly Rock.   Legend tells us the first Casterly lord was a huntsman, Corlos son of Caster, w