Source: Seekers of Secrets, pg(s). 14
The Imperial House of Asgavan is a currently defunct Chelish noble house. Its last heir, Sheraya Solistar, was lost in a Pathfinder Society expedition in the Realm of the Mammoth Lords in 4638 AR. Her loss shifted the power in Cheliax toward House Thrune, which would eventually become the country's new royal family. Some would-be revolutionaries among the Chelish exile community in Absalom hope to organize a new expedition and find a living heir of Sheraya, capable of challenging House Thrune in Cheliax.