The Ducal House of Sayerburn are the rulers of the ducal seat of Calthoss' Cave in the Arm of Crahia. House Sayerburn keeps the Faith of the Calthoss the Dragon-Beneath-this-Earth, and were originally finded by wealthy spice trading lavafarers. Originally major lords in the Empire of the Sefenlands, they had always abhorred slavery as abomination, in keeping with their faith. They aided the Coldlands in its infancy, and were rewarded centuries later with money, titles, and marriages into the House of Messoloriha.