The Great Families of the Sunborn, though they are all connected to ancient of blood of Rashim, her great many children have over the centuries formed their households, for all of them knew that only one could inheriate her direct power and become Radiant, as such each of the great and minor families alike are in direct rivalry with one another to produce the strongest heir and claim the sunburst throne.
The Great Families generally specialize in fields as they seek to gain the favor of The Radiant, and direct conflict in the services they provide, can prove deadly, but such rivalries are not uncommon.