Around the Red Emperor are numerous powerful families (or clans) most of whom are related to the Red Emperor, descended from him, married to him, etc. Those “born in the red” are of course superior to those born while the mask was a mere mortal, although I have heard convincing speculation that only daughters are ever born in the red (Hwarin Dalthippa, Hon-eel, Jar-eel, etc.) but that might just be the murkiness of imperial genealogy. That being said, I am unaware of any confirmed son of Moonson.The Silver Shadow Satrapy is filled with these imperial kin, but most Dara Happan nobles now claim at least some kinship with Moonson. Being descended from Moonson means that you are but a few generations from divinity and can claim descent from both the Red Goddess and Yelm!Some of the most powerful clans are presented in the Guide. They include the satrapal clans like the Eel-arish and the Taran-il, think of these like daimyo clans in Imperial Japan. They are related, but conspire against each other, raise private armies, and fight with each other through assassination and secret wars. They are focused on the real prize, of course, and that is control of the Red Emperor and domination of the Lunar Empire itself